Compress PDF

What is the Compress PDF tool?

The Compress PDF tool reduces file size by re-rendering each page as an optimized image and rebuilding the PDF, right on your device. Three honest presets let you choose the trade-off: Strong for the smallest file (great for email limits), Recommended for everyday sharing, and Light when quality matters most. You see the before/after size the moment it finishes.

Key features

• Three presets: Strong (smallest), Recommended, Light (best quality)
• Shows exact size reduction, e.g. 18.4 MB → 2.1 MB (89% smaller)
• Perfect for 2 MB / 5 MB upload limits on government and job portals
• Handles scanned documents and photo-heavy PDFs especially well
• Processed entirely on your device — no upload

How do I use it?

1. Drop the PDF you want to shrink.
2. Pick a compression level — Recommended works for most cases.
3. Click Compress & download.
4. Check the size result shown (original → new); re-run with Strong if you need it smaller.

Is it safe to compress a PDF online?

Yes. Pages are rasterised with Mozilla’s PDF.js and rebuilt into a new PDF using only your device’s processor and memory. Note one honest trade-off: because pages become images, text in the compressed copy is no longer selectable — keep your original for editing and use the compressed copy for sharing.

Tips for the best result

• For portal limits (e.g. “max 2 MB”), start with Strong — it typically cuts 70–90%.
• Text-only PDFs are already small; compression helps most on scans and photos.
• Keep the original file — compression is one-way since pages become images.
• If the result looks soft, re-run the original with Light instead.