Compress PDF
Reduce PDF size by rasterizing pages at chosen DPI/quality. Private, offline, and fast—everything happens in your browser.
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.