This free online PDF compressor reduces a PDF's file size by re-rendering each page as a JPEG at your chosen quality and rebuilding a smaller PDF. Everything happens in your browser - your PDF is never uploaded anywhere.
Important: the compressed PDF's pages become images. Text will no longer be selectable, searchable, or copyable in the output file.
How to Use the PDF Compressor
Click "Select PDF" and choose the PDF file you want to shrink.
Adjust the quality slider - lower values produce a smaller file but blurrier pages.
Click "Compress" and wait for each page to render, then download the result.
Frequently Asked Questions
Since this tool runs entirely in your browser with no server, it renders each page of your PDF onto a canvas, re-encodes that page as a JPEG at your chosen quality, and rebuilds a new, smaller PDF from those page images.
No. Because each page becomes a JPEG image, the output PDF is not searchable or selectable, even though it looks the same.
No. Rendering and compression happen entirely in your browser - your PDF never leaves your device.
Yes, it's completely free and requires no sign-up.