Compress PDF and reduce file size
Make a PDF small enough to email or upload to a form. Balanced keeps text sharp and selectable while shrinking the images inside. Smallest gives the biggest saving. You see the new size before you download.
10 of 10 free online tasks left this hour · How your files stay private
- Files never leave your device
- Free, no sign-up
- No watermark added
Why use this free Compress PDF tool
Two levels
Balanced for everyday use, Smallest when every kilobyte counts.
See the saving
You get the old and new size, so you know it worked.
Text stays sharp
Balanced only shrinks images, so text stays crisp and searchable.
Nothing uploaded
Big scans are compressed on your device, not on a server.
How to compress PDF in 3 steps
- 1
Choose the PDF you want to make smaller
- 2
Pick Balanced or Smallest
- 3
Download your compressed PDF
Compress PDF: common questions
Your file is never uploaded. The tool runs inside your browser, so the file is read and changed on your own device. Nobody else, including us, can see it.
PDFs full of photos or scans often shrink by 50 to 90 percent. PDFs that are mostly text are already small and shrink less.
Balanced shrinks the images inside and keeps text selectable. Smallest turns each page into an image, which gives the smallest file but text can no longer be selected.
Often, yes. Try Balanced first. If the file is still too big, use Smallest.
Yes. There is no sign-up, no watermark and no trial. You can run 10 tasks an hour online. For unlimited use, get the free desktop app for Windows or Mac.
Other free PDF tools
Need more than 10 tasks an hour?
The free YourOfficeSuite app for Windows and Mac has all 15 PDF tools with no limits, including Edit & annotate, Office to PDF and PDF to Word. It also has full Word, Excel and PowerPoint editors.