Compress PDF
Reduce PDF size by rasterizing pages at chosen DPI/quality. Private, offline, and fast?everything happens in your browser.
Explanation
Dexify compresses PDFs locally with PDF.js and PDF-Lib. Pages render to images at the DPI and JPEG quality you pick, then rebuild into a smaller PDF. Because it stays in your browser, sensitive files never leave your device.
Use Medium compression with 150-200 DPI for balanced clarity. Drop quality/DPI for email-ready files; raise them for print. Status, page counts, and size indicators keep you oriented as you experiment with settings.
The layout mirrors other Dexify tools—chips, upload area, and consistent buttons—so switching between compress, merge, or protect feels seamless. If the original is critical, test on a copy first.
Frequently Asked Questions
How does it compress?
Each page is rendered to a JPEG at your chosen DPI/quality, then rebuilt into a new PDF.
Will text stay selectable?
No. Rasterization turns pages into images; text will not be selectable/searchable.
Best settings?
Use Medium compression, 150-200 DPI, and 0.8 quality for balanced results. Lower for smaller size.
Large PDFs?
Up to ~100 MB depending on device memory. Very large PDFs may be slow on low-memory devices.
Is it private?
Yes. Everything runs in your browser; nothing is uploaded.
OCR included?
No OCR. Compression is lossy and raster-based.
Vector PDFs?
Vector-heavy PDFs may not shrink much; rasterizing can even enlarge. Test first.
Undo compression?
No. Keep an original backup if you may need full quality later.
Can I preview?
We show page count and output size. Try a low sample run first if unsure.
Use Cases
- Shrink reports for email or ticket attachments.
- Reduce marketing PDFs for landing page downloads.
- Lighten scanned documents for faster sharing.
- Prep decks for mobile viewing with smaller sizes.
- Create quick review copies before final print outputs.
Key Features
- Client-side PDF.js + PDF-Lib compression for privacy.
- DPI and JPEG quality controls to balance size vs clarity.
- Progress and size indicators to track savings.
- Clean, watermark-free outputs; originals stay untouched.
- Consistent Dexify UI shared with merge, split, and protect tools.