Compress PDF
Compress PDF shrinks a PDF in your browser by re-packing streams and stripping metadata — useful for email limits and portal uploads without uploading the file to our servers.
How to Use Compress PDF
- Select a PDF from your device.
- Click Compress PDF — processing runs locally.
- Compare original vs compressed size.
- Download the smaller file when ready.
Common Use Cases
- Shrink PDFs under email attachment limits (e.g. 10MB).
- Prepare application packs for government portals.
- Reduce scan bundles before merging with Merge PDF.
When compression helps
Email caps (often ~10MB), job portals, and GOV.UK / IRCC-style uploads reject large packs. Re-packing can trim bloat from exports and merges.
Scanned photo PDFs
If your PDF is mostly photos, compress images first or rebuild with Images to PDF after shrinking photos — stream re-pack alone has limits.
Frequently Asked Questions
Is my PDF uploaded?
No. Compression runs locally in your browser memory.
Why barely smaller?
Already-optimized or image-heavy PDFs may not shrink much. Try image compression or a lower-quality scan rebuild.
Related Tools in PDF & Document Tools
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Merge PDF Files
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Split PDF File
Split a large PDF into separate pages or extract specific page ranges.
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JPG to PDF Converter
Convert JPG, PNG, and WebP images into a clean PDF document.
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Multiple Images to PDF
Combine multiple pictures into a single multi-page PDF document.