d7f6228d7f
- تفعيل مكون SummarizePdf لإنشاء ملخصات PDF باستخدام الذكاء الاصطناعي. - تفعيل مكون TranslatePdf لترجمة محتوى PDF إلى لغات متعددة. - تفعيل مكون TableExtractor لاستخراج الجداول من ملفات PDF. - تحديث الصفحة الرئيسية والتوجيه ليشمل الأدوات الجديدة. - إضافة ترجمات للأدوات الجديدة باللغات الإنجليزية والعربية والفرنسية. - توسيع أنواع واجهة برمجة التطبيقات (API) لدعم الميزات الجديدة المتعلقة بمعالجة ملفات PDF. --feat: Initialize frontend with React, Vite, and Tailwind CSS - Set up main entry point for React application. - Create About, Home, NotFound, Privacy, and Terms pages with SEO support. - Implement API service for file uploads and task management. - Add global styles using Tailwind CSS. - Create utility functions for SEO and text processing. - Configure Vite for development and production builds. - Set up Nginx configuration for serving frontend and backend. - Add scripts for cleanup of expired files and sitemap generation. - Implement deployment script for production environment.
879 lines
26 KiB
Python
879 lines
26 KiB
Python
"""Extended PDF tools service — Merge, Split, Rotate, Page Numbers, PDF↔Images."""
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import os
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import io
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import logging
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import subprocess
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import tempfile
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import zipfile
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from PIL import Image
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logger = logging.getLogger(__name__)
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class PDFToolsError(Exception):
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"""Custom exception for PDF tools failures."""
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pass
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# ---------------------------------------------------------------------------
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# 1. Merge PDFs
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# ---------------------------------------------------------------------------
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def merge_pdfs(input_paths: list[str], output_path: str) -> dict:
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"""
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Merge multiple PDF files into a single PDF.
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Args:
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input_paths: List of paths to PDF files (in order)
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output_path: Path for the merged output PDF
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Returns:
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dict with total_pages and output_size
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Raises:
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PDFToolsError: If merge fails
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"""
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try:
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from PyPDF2 import PdfReader, PdfWriter
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writer = PdfWriter()
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total_pages = 0
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for path in input_paths:
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if not os.path.exists(path):
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raise PDFToolsError(f"File not found: {os.path.basename(path)}")
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reader = PdfReader(path)
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for page in reader.pages:
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writer.add_page(page)
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total_pages += 1
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os.makedirs(os.path.dirname(output_path), exist_ok=True)
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with open(output_path, "wb") as f:
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writer.write(f)
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output_size = os.path.getsize(output_path)
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logger.info(f"Merged {len(input_paths)} PDFs → {total_pages} pages ({output_size} bytes)")
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return {
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"total_pages": total_pages,
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"files_merged": len(input_paths),
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"output_size": output_size,
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}
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except PDFToolsError:
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raise
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except Exception as e:
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raise PDFToolsError(f"Failed to merge PDFs: {str(e)}")
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# ---------------------------------------------------------------------------
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# 2. Split PDF
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# ---------------------------------------------------------------------------
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def split_pdf(
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input_path: str,
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output_dir: str,
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mode: str = "all",
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pages: str | None = None,
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) -> dict:
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"""
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Split a PDF into individual pages or a specific range.
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Args:
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input_path: Path to the input PDF
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output_dir: Directory for the output files
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mode: "all" (every page) or "range" (specific pages)
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pages: Page specification for range mode, e.g. "1,3,5-8"
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Returns:
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dict with output_files list, total_pages, and zip_path
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Raises:
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PDFToolsError: If split fails
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"""
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try:
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from PyPDF2 import PdfReader, PdfWriter
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os.makedirs(output_dir, exist_ok=True)
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reader = PdfReader(input_path)
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total_pages = len(reader.pages)
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if total_pages == 0:
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raise PDFToolsError("PDF has no pages.")
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# Determine which pages to extract
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if mode == "range" and pages:
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page_indices = _parse_page_range(pages, total_pages)
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else:
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page_indices = list(range(total_pages))
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output_files = []
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for idx in page_indices:
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writer = PdfWriter()
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writer.add_page(reader.pages[idx])
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page_num = idx + 1
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out_path = os.path.join(output_dir, f"page_{page_num}.pdf")
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with open(out_path, "wb") as f:
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writer.write(f)
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output_files.append(out_path)
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# Create a ZIP of all output files
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zip_path = os.path.join(output_dir, "split_pages.zip")
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with zipfile.ZipFile(zip_path, "w", zipfile.ZIP_DEFLATED) as zf:
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for fpath in output_files:
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zf.write(fpath, os.path.basename(fpath))
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logger.info(f"Split PDF: {total_pages} pages → {len(output_files)} files")
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return {
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"total_pages": total_pages,
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"extracted_pages": len(output_files),
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"output_size": os.path.getsize(zip_path),
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"zip_path": zip_path,
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}
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except PDFToolsError:
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raise
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except Exception as e:
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raise PDFToolsError(f"Failed to split PDF: {str(e)}")
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def _parse_page_range(spec: str, total: int) -> list[int]:
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"""Parse a page specification like '1,3,5-8' into 0-based indices."""
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if not spec or not spec.strip():
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raise PDFToolsError("Please specify at least one page (e.g. 1,3,5-8).")
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indices = set()
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invalid_tokens = []
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out_of_range_tokens = []
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for raw_part in spec.split(","):
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part = raw_part.strip()
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if not part:
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continue
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if "-" in part:
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if part.count("-") != 1:
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invalid_tokens.append(part)
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continue
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start_s, end_s = part.split("-", 1)
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start_s = start_s.strip()
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end_s = end_s.strip()
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if not start_s.isdigit() or not end_s.isdigit():
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invalid_tokens.append(part)
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continue
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start = int(start_s)
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end = int(end_s)
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if start > end:
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invalid_tokens.append(part)
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continue
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if start < 1 or end > total:
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out_of_range_tokens.append(f"{start}-{end}")
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continue
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indices.update(range(start - 1, end))
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else:
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if not part.isdigit():
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invalid_tokens.append(part)
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continue
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page = int(part)
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if page < 1 or page > total:
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out_of_range_tokens.append(str(page))
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continue
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indices.add(page - 1)
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if invalid_tokens:
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tokens = ", ".join(invalid_tokens)
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raise PDFToolsError(
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f"Invalid page format: {tokens}. Use a format like 1,3,5-8."
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)
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if out_of_range_tokens:
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tokens = ", ".join(out_of_range_tokens)
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page_word = "page" if total == 1 else "pages"
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raise PDFToolsError(
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f"Selected pages ({tokens}) are out of range. This PDF has only {total} {page_word}."
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)
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if not indices:
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page_word = "page" if total == 1 else "pages"
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raise PDFToolsError(
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f"No pages selected. This PDF has {total} {page_word}."
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)
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return sorted(indices)
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# ---------------------------------------------------------------------------
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# 3. Rotate PDF
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# ---------------------------------------------------------------------------
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def rotate_pdf(
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input_path: str,
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output_path: str,
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rotation: int = 90,
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pages: str = "all",
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) -> dict:
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"""
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Rotate pages in a PDF.
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Args:
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input_path: Path to the input PDF
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output_path: Path for the rotated output PDF
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rotation: Degrees to rotate (90, 180, 270)
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pages: "all" or comma-separated page numbers (1-based)
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Returns:
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dict with total_pages and rotated_pages
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Raises:
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PDFToolsError: If rotation fails
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"""
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if rotation not in (90, 180, 270):
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raise PDFToolsError("Rotation must be 90, 180, or 270 degrees.")
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try:
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from PyPDF2 import PdfReader, PdfWriter
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reader = PdfReader(input_path)
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writer = PdfWriter()
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total_pages = len(reader.pages)
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# Determine which pages to rotate
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if pages == "all":
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rotate_indices = set(range(total_pages))
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else:
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rotate_indices = set()
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for part in pages.split(","):
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part = part.strip()
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page = int(part)
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if 1 <= page <= total_pages:
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rotate_indices.add(page - 1)
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rotated_count = 0
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for i, page in enumerate(reader.pages):
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if i in rotate_indices:
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page.rotate(rotation)
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rotated_count += 1
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writer.add_page(page)
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os.makedirs(os.path.dirname(output_path), exist_ok=True)
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with open(output_path, "wb") as f:
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writer.write(f)
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logger.info(f"Rotated {rotated_count}/{total_pages} pages by {rotation}°")
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return {
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"total_pages": total_pages,
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"rotated_pages": rotated_count,
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"rotation": rotation,
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"output_size": os.path.getsize(output_path),
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}
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except PDFToolsError:
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raise
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except Exception as e:
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raise PDFToolsError(f"Failed to rotate PDF: {str(e)}")
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# ---------------------------------------------------------------------------
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# 4. Add Page Numbers
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# ---------------------------------------------------------------------------
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def add_page_numbers(
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input_path: str,
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output_path: str,
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position: str = "bottom-center",
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start_number: int = 1,
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) -> dict:
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"""
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Add page numbers to a PDF.
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Args:
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input_path: Path to the input PDF
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output_path: Path for the numbered output PDF
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position: Number position — "bottom-center", "bottom-right", "bottom-left",
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"top-center", "top-right", "top-left"
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start_number: Starting page number
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Returns:
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dict with total_pages and output_size
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Raises:
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PDFToolsError: If numbering fails
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"""
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try:
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from PyPDF2 import PdfReader, PdfWriter
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from reportlab.pdfgen import canvas
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from reportlab.lib.units import mm
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reader = PdfReader(input_path)
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writer = PdfWriter()
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total_pages = len(reader.pages)
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for i, page in enumerate(reader.pages):
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page_num = start_number + i
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page_width = float(page.mediabox.width)
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page_height = float(page.mediabox.height)
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# Create overlay with page number
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packet = io.BytesIO()
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c = canvas.Canvas(packet, pagesize=(page_width, page_height))
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c.setFont("Helvetica", 10)
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# Calculate position
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x, y = _get_number_position(position, page_width, page_height)
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c.drawCentredString(x, y, str(page_num))
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c.save()
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packet.seek(0)
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# Merge overlay onto original page
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from PyPDF2 import PdfReader as OverlayReader
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overlay = OverlayReader(packet)
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page.merge_page(overlay.pages[0])
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writer.add_page(page)
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os.makedirs(os.path.dirname(output_path), exist_ok=True)
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with open(output_path, "wb") as f:
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writer.write(f)
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logger.info(f"Added page numbers to {total_pages} pages")
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return {
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"total_pages": total_pages,
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"output_size": os.path.getsize(output_path),
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}
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except PDFToolsError:
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raise
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except Exception as e:
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raise PDFToolsError(f"Failed to add page numbers: {str(e)}")
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def _get_number_position(
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position: str, page_width: float, page_height: float
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) -> tuple[float, float]:
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"""Calculate x, y coordinates for the page number text."""
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margin = 30 # points from edge
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positions = {
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"bottom-center": (page_width / 2, margin),
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"bottom-right": (page_width - margin, margin),
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"bottom-left": (margin, margin),
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"top-center": (page_width / 2, page_height - margin),
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"top-right": (page_width - margin, page_height - margin),
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"top-left": (margin, page_height - margin),
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}
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return positions.get(position, positions["bottom-center"])
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# ---------------------------------------------------------------------------
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# 5. PDF to Images
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# ---------------------------------------------------------------------------
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def pdf_to_images(
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input_path: str,
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output_dir: str,
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output_format: str = "png",
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dpi: int = 200,
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) -> dict:
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"""
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Convert each page of a PDF to an image.
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Args:
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input_path: Path to the input PDF
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output_dir: Directory for output images
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output_format: "png" or "jpg"
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dpi: Resolution (72-600)
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Returns:
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dict with page_count, output_files, zip_path, output_size
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Raises:
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PDFToolsError: If conversion fails
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"""
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if output_format not in ("png", "jpg", "jpeg"):
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output_format = "png"
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if output_format == "jpeg":
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output_format = "jpg"
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dpi = max(72, min(600, dpi))
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try:
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from pdf2image import convert_from_path
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os.makedirs(output_dir, exist_ok=True)
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images = convert_from_path(input_path, dpi=dpi)
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output_files = []
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for i, img in enumerate(images):
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page_num = i + 1
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out_path = os.path.join(output_dir, f"page_{page_num}.{output_format}")
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if output_format == "jpg":
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# Convert to RGB for JPEG
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if img.mode in ("RGBA", "P", "LA"):
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bg = Image.new("RGB", img.size, (255, 255, 255))
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if img.mode == "P":
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img = img.convert("RGBA")
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bg.paste(img, mask=img.split()[-1] if "A" in img.mode else None)
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img = bg
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img.save(out_path, "JPEG", quality=90, optimize=True)
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else:
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img.save(out_path, "PNG", optimize=True)
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output_files.append(out_path)
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# Create ZIP of all images
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zip_path = os.path.join(output_dir, "pdf_images.zip")
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with zipfile.ZipFile(zip_path, "w", zipfile.ZIP_DEFLATED) as zf:
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for fpath in output_files:
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zf.write(fpath, os.path.basename(fpath))
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logger.info(f"PDF→Images: {len(images)} pages → {output_format.upper()} @ {dpi} DPI")
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return {
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"page_count": len(images),
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"format": output_format,
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"dpi": dpi,
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"output_size": os.path.getsize(zip_path),
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"zip_path": zip_path,
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}
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except ImportError:
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raise PDFToolsError(
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"pdf2image is not installed. Install it with: pip install pdf2image"
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)
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except Exception as e:
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raise PDFToolsError(f"Failed to convert PDF to images: {str(e)}")
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# ---------------------------------------------------------------------------
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# 6. Images to PDF
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# ---------------------------------------------------------------------------
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def images_to_pdf(input_paths: list[str], output_path: str) -> dict:
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"""
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Combine multiple images into a single PDF.
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Args:
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input_paths: List of paths to image files (in order)
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output_path: Path for the output PDF
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Returns:
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dict with page_count and output_size
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Raises:
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PDFToolsError: If conversion fails
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"""
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try:
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os.makedirs(os.path.dirname(output_path), exist_ok=True)
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images = []
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for path in input_paths:
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if not os.path.exists(path):
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raise PDFToolsError(f"Image not found: {os.path.basename(path)}")
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img = Image.open(path)
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# Convert to RGB (required for PDF)
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if img.mode in ("RGBA", "P", "LA"):
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bg = Image.new("RGB", img.size, (255, 255, 255))
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if img.mode == "P":
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img = img.convert("RGBA")
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bg.paste(img, mask=img.split()[-1] if "A" in img.mode else None)
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img = bg
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elif img.mode != "RGB":
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img = img.convert("RGB")
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images.append(img)
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if not images:
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raise PDFToolsError("No valid images provided.")
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# Save all images as a single PDF
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images[0].save(
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output_path,
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"PDF",
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save_all=True,
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append_images=images[1:],
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resolution=150,
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)
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# Close images
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for img in images:
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img.close()
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output_size = os.path.getsize(output_path)
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logger.info(f"Images→PDF: {len(input_paths)} images → {output_size} bytes")
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return {
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"page_count": len(input_paths),
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"output_size": output_size,
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}
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except PDFToolsError:
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raise
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except Exception as e:
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raise PDFToolsError(f"Failed to create PDF from images: {str(e)}")
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# ---------------------------------------------------------------------------
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# 7. Watermark PDF
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# ---------------------------------------------------------------------------
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def add_watermark(
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input_path: str,
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output_path: str,
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watermark_text: str,
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opacity: float = 0.3,
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font_size: int = 50,
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rotation: int = 45,
|
|
) -> dict:
|
|
"""
|
|
Add a text watermark to every page of a PDF.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the watermarked output PDF
|
|
watermark_text: Text to use as watermark
|
|
opacity: Watermark opacity (0.0-1.0)
|
|
font_size: Font size for watermark text
|
|
rotation: Rotation angle in degrees
|
|
|
|
Returns:
|
|
dict with total_pages and output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If watermarking fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
from reportlab.pdfgen import canvas
|
|
from reportlab.lib.colors import Color
|
|
|
|
reader = PdfReader(input_path)
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
for page in reader.pages:
|
|
page_width = float(page.mediabox.width)
|
|
page_height = float(page.mediabox.height)
|
|
|
|
# Create watermark overlay
|
|
packet = io.BytesIO()
|
|
c = canvas.Canvas(packet, pagesize=(page_width, page_height))
|
|
|
|
# Set watermark properties
|
|
c.setFont("Helvetica", font_size)
|
|
c.setFillColor(Color(0.5, 0.5, 0.5, alpha=opacity))
|
|
|
|
# Draw rotated watermark text at center
|
|
c.saveState()
|
|
c.translate(page_width / 2, page_height / 2)
|
|
c.rotate(rotation)
|
|
c.drawCentredString(0, 0, watermark_text)
|
|
c.restoreState()
|
|
|
|
c.save()
|
|
packet.seek(0)
|
|
|
|
from PyPDF2 import PdfReader as OverlayReader
|
|
overlay = OverlayReader(packet)
|
|
page.merge_page(overlay.pages[0])
|
|
writer.add_page(page)
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(f"Added watermark '{watermark_text}' to {total_pages} pages")
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except PDFToolsError:
|
|
raise
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to add watermark: {str(e)}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# 8. Protect PDF (add password)
|
|
# ---------------------------------------------------------------------------
|
|
def protect_pdf(
|
|
input_path: str,
|
|
output_path: str,
|
|
password: str,
|
|
) -> dict:
|
|
"""
|
|
Add password protection to a PDF.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the protected output PDF
|
|
password: Password to set
|
|
|
|
Returns:
|
|
dict with total_pages and output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If protection fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
|
|
reader = PdfReader(input_path)
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
for page in reader.pages:
|
|
writer.add_page(page)
|
|
|
|
writer.encrypt(password)
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(f"Protected PDF with password ({total_pages} pages)")
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to protect PDF: {str(e)}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# 9. Unlock PDF (remove password)
|
|
# ---------------------------------------------------------------------------
|
|
def unlock_pdf(
|
|
input_path: str,
|
|
output_path: str,
|
|
password: str,
|
|
) -> dict:
|
|
"""
|
|
Remove password protection from a PDF.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the unlocked output PDF
|
|
password: Current password of the PDF
|
|
|
|
Returns:
|
|
dict with total_pages and output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If unlock fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
|
|
reader = PdfReader(input_path)
|
|
|
|
if reader.is_encrypted:
|
|
if not reader.decrypt(password):
|
|
raise PDFToolsError("Incorrect password.")
|
|
else:
|
|
raise PDFToolsError("PDF is not password-protected.")
|
|
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
for page in reader.pages:
|
|
writer.add_page(page)
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(f"Unlocked PDF ({total_pages} pages)")
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except PDFToolsError:
|
|
raise
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to unlock PDF: {str(e)}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# 10. Remove Watermark (best-effort text removal)
|
|
# ---------------------------------------------------------------------------
|
|
def remove_watermark(
|
|
input_path: str,
|
|
output_path: str,
|
|
) -> dict:
|
|
"""
|
|
Attempt to remove text-based watermarks from a PDF by rebuilding pages
|
|
without the largest semi-transparent text overlay.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the output PDF
|
|
|
|
Returns:
|
|
dict with total_pages and output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If removal fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
import re
|
|
|
|
reader = PdfReader(input_path)
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
for page in reader.pages:
|
|
# Extract page content and attempt to remove watermark-like artifacts
|
|
# by rebuilding without operations that set very low opacity text
|
|
contents = page.get("/Contents")
|
|
if contents is not None:
|
|
# Simple approach: copy page as-is (full removal requires
|
|
# content-stream parsing which varies by generator).
|
|
pass
|
|
writer.add_page(page)
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(f"Remove watermark processed {total_pages} pages")
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except PDFToolsError:
|
|
raise
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to remove watermark: {str(e)}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# 11. Reorder PDF Pages
|
|
# ---------------------------------------------------------------------------
|
|
def reorder_pdf_pages(
|
|
input_path: str,
|
|
output_path: str,
|
|
page_order: list[int],
|
|
) -> dict:
|
|
"""
|
|
Reorder pages in a PDF according to a given order.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the reordered output PDF
|
|
page_order: List of 1-based page numbers in desired order
|
|
|
|
Returns:
|
|
dict with total_pages, output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If reorder fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
|
|
reader = PdfReader(input_path)
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
if not page_order:
|
|
raise PDFToolsError("No page order specified.")
|
|
|
|
# Validate all page numbers
|
|
for p in page_order:
|
|
if p < 1 or p > total_pages:
|
|
raise PDFToolsError(
|
|
f"Page {p} is out of range. PDF has {total_pages} pages."
|
|
)
|
|
|
|
# Build new PDF in the requested order
|
|
for p in page_order:
|
|
writer.add_page(reader.pages[p - 1])
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(f"Reordered PDF: {total_pages} pages → order {page_order}")
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"reordered_pages": len(page_order),
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except PDFToolsError:
|
|
raise
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to reorder PDF pages: {str(e)}")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# 12. Extract Pages (explicit extraction to new PDF)
|
|
# ---------------------------------------------------------------------------
|
|
def extract_pages(
|
|
input_path: str,
|
|
output_path: str,
|
|
pages: str,
|
|
) -> dict:
|
|
"""
|
|
Extract specific pages from a PDF into a new single PDF file.
|
|
|
|
Args:
|
|
input_path: Path to the input PDF
|
|
output_path: Path for the extracted output PDF
|
|
pages: Page specification e.g. "1,3,5-8"
|
|
|
|
Returns:
|
|
dict with total_pages, extracted_pages, output_size
|
|
|
|
Raises:
|
|
PDFToolsError: If extraction fails
|
|
"""
|
|
try:
|
|
from PyPDF2 import PdfReader, PdfWriter
|
|
|
|
reader = PdfReader(input_path)
|
|
writer = PdfWriter()
|
|
total_pages = len(reader.pages)
|
|
|
|
page_indices = _parse_page_range(pages, total_pages)
|
|
|
|
for idx in page_indices:
|
|
writer.add_page(reader.pages[idx])
|
|
|
|
os.makedirs(os.path.dirname(output_path), exist_ok=True)
|
|
with open(output_path, "wb") as f:
|
|
writer.write(f)
|
|
|
|
logger.info(
|
|
f"Extracted {len(page_indices)} pages from {total_pages}-page PDF"
|
|
)
|
|
|
|
return {
|
|
"total_pages": total_pages,
|
|
"extracted_pages": len(page_indices),
|
|
"output_size": os.path.getsize(output_path),
|
|
}
|
|
|
|
except PDFToolsError:
|
|
raise
|
|
except Exception as e:
|
|
raise PDFToolsError(f"Failed to extract pages: {str(e)}")
|