← All PDF Tools

🗜️ Compress PDF

Reduce the file size of a PDF. Useful for email attachments, upload limits, and storage. All in your browser.

📄
Drop a PDF here or click to select
One PDF file
Compressing…
✓ Compression done!

🔒Your PDF is processed in your browser only. Never uploaded.

When compression works best

  • PDFs with many embedded images compress the most (scanned docs, photo PDFs)
  • Text-only PDFs are already small — minimal compression possible
  • For maximum reduction: use Low quality + remove unnecessary metadata
  • Most email systems have a 10–25 MB attachment limit — compress to fit

How to Reduce PDF File Size

Large PDFs are common when scanning documents or exporting from design tools. PDFCraft reduces PDF file size by recompressing the internal structure and images. No file is uploaded — compression happens entirely in your browser, so your documents stay private.

Common reasons to compress: email size limits (Gmail's 25 MB), WhatsApp 100 MB limit, government portal upload limits (often 2–5 MB), and reducing cloud storage usage.

Related tools: Merge PDF → Split PDF → Image to PDF →