What Python Tools Compress Normal Pdf Files Effectively?

2025-07-04 00:16:31 252

4 回答

Thomas
Thomas
2025-07-05 00:47:03
For quick PDF compression, I rely on 'PyPDF2’s' merge functionality—it indirectly reduces size by stripping redundant metadata. 'pdftocairo' (accessed via Python’s 'os.system') is great for converting pages to monochrome, slashing size. If you need GUI integration, 'PySimpleGUI' paired with 'Ghostscript' makes a user-friendly tool. Remember to delete annotations and unused fonts first; 'pdf-redactor' helps with this. Stick to lossy compression only if text clarity isn’t critical.
Kayla
Kayla
2025-07-07 18:22:32
I work with academic papers and need to shrink PDFs without losing readability. 'pikepdf' is my go-to because it handles OCR'd text beautifully and supports incremental saves, which is great for large files. For scripts, I pair it with 'Ghostscript' via the 'subprocess' module to tweak compression levels—200 DPI usually strikes a good balance. 'PyPDF2' works in a pinch for basic tasks, like removing bookmarks or flattening forms, but it doesn’t reduce size as effectively. If you're dealing with images in PDFs, 'pdfsizeopt' (a Python wrapper) is magic—it repacks fonts and re-encodes graphics. Just avoid 'pdfminer' for compression; it’s better for extraction.
Daniel
Daniel
2025-07-08 20:40:18
When I archive manga scans as PDFs, space is a big concern. I swear by 'img2pdf'—it converts folders of PNGs/JPEGs into tightly compressed PDFs with minimal quality loss. The CLI tool 'pdf-compressor' (Python-based) is another lifesaver; it uses FFmpeg under the hood to crush image-heavy files. For automated workflows, I wrote a script combining 'Wand' (ImageMagick’s Python bindings) to downsample colors before passing to 'PyMuPDF'. Bonus tip: Always check 'qpdf --linearize' for faster web viewing after compression. Avoid 'ReportLab'—it’s better for creating PDFs than shrinking them.
Violet
Violet
2025-07-10 06:46:47
I've experimented with several Python tools to compress them effectively. 'PyMuPDF' (also known as 'fitz') is a powerful library that allows granular control over compression settings, making it ideal for balancing quality and size. I often use it to reduce scanned documents by adjusting DPI and removing unnecessary metadata.

Another favorite is 'pdf2image' combined with 'Pillow'—this duo lets me convert PDF pages to optimized JPEGs before reassembling them into a lighter PDF. For batch processing, 'pdfrw' is fantastic due to its simplicity and speed, though it lacks advanced compression options. If you need lossless compression, 'pikepdf' is a modern choice that supports JBIG2 and JPEG2000, which are great for text-heavy files. Each tool has its strengths, but 'PyMuPDF' remains my top pick for its versatility.
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