Compress PDF
Make a PDF smaller by turning its pages into compressed images.
Your files are processed on your device and never uploaded. Only the open-source processing engine is downloaded when the tool opens.
How to use
- Add one PDF, up to 50 MB.
- Choose Low, Medium or Strong compression and tap Compress PDF.
- Check how much space you saved, then download.
About Compress PDF
Compress PDF redraws each page as a JPEG image at a lower resolution: Low at 150 DPI, Medium at 110 DPI and Strong at 80 DPI. That shrinks heavy scanned documents a lot, but text won't be selectable afterwards, so it's best for scans. Your PDF is processed in your browser and is never uploaded.
FAQs
Which level should I choose?
Low for documents you'll print, Medium for email, Strong for the smallest file when quality matters less.
Why did my file get bigger?
PDFs made of plain text are already tiny, and images of their pages can be larger. When that happens Toolsaku tells you and offers your original file.
Will links and text still work?
No. Each page becomes an image, so text, links and form fields are flattened.