Shrink large scanned or image-heavy PDFs so they fit email and upload limits.
🔒 Runs entirely in your browser – your files are never uploaded.
How to use the compress pdf
- Choose the compression level.
- Drop in your PDF.
- Download the smaller file.
Best for scanned documents
Scanned PDFs are big because every page is a photo. Re-saving each page at a sensible resolution usually cuts the size by 50-90%. Text-only PDFs are already small, so the original is kept if compression would not help.
Trade-off
Compressed pages are saved as images, so text can no longer be selected or searched. Keep the original if you need that.
Frequently asked questions
How do I reduce a PDF to under 1 MB?
Choose Strong compression. Most scanned documents of up to ~15 pages land under 1 MB.
Is my PDF uploaded?
No. Compression happens in your browser.
Why is my text no longer selectable?
Pages are re-saved as images to make them smaller.