Edit. Convert. Create. Simplify.
Edit. Convert. Create. Simplify.
Home › Free PDF Tools › Compress PDF
Make a PDF smaller so it is easier to email, upload or store. Choose how much to compress — text stays sharp and selectable in the Recommended and Smaller modes. Your PDF is compressed in your browser and never uploaded.
✓ Free · ✓ No sign-up · ✓ Files stay on your device · ✓ Works on phone and computer
What makes a PDF large? Almost always photos and scanned pages. This tool re-saves the photos inside your PDF at a sensible resolution and quality, which often cuts the size by more than half. PDFs that contain only text are usually small already and may not shrink much.
Get under the 10–25 MB attachment limit of most email services.
Meet the file-size cap on job, visa, university and government portals.
Shrink large scans from a phone or office scanner.
Keep archives and shared drives smaller.
Yes. It is free to use, with no sign-up and no watermark added to your file.
No. The tool runs inside your own browser, so your file never leaves your device. Nothing is stored after you close the page.
It depends on what is inside. PDFs with photos or scans often shrink by 50–90%. Text-only PDFs are usually small already and may only shrink a little.
Recommended keeps photos sharp on screen and in normal printing. Smaller and Strongest trade some image quality for a smaller file. Text is never blurred in Recommended or Smaller.
Try Strongest. Scans are pictures of pages, so turning them into compressed images gives the biggest saving.
Not directly. Remove the password first with Unlock PDF (you need to know it), compress, then add it back with Protect PDF.
Combine several PDFs into one file, in any order.
Separate every page, or custom page ranges, into new PDFs.
Turn PDF pages into JPG or PNG images.
Add a password with AES-256 encryption.
Our team can rebuild heavy scanned PDFs as clean, small, searchable files. Send your file for a free quote.