Compress PDF
Reduce a PDF's file size by re-rendering its pages at a lower quality.
This Compress PDF tool shrinks a PDF's file size by re-rendering each page as an image at a chosen quality level — higher compression means a smaller file but lower image quality, and the compressed PDF's text is no longer selectable or searchable as a result. Choose a level, compress, and download; nothing leaves your browser.
How to use
- 1Upload a PDF.
- 2Choose a compression level — higher compression means a smaller file but lower image quality.
- 3Click Compress and download the smaller file.
Frequently asked questions
Why would I need to compress a PDF?
Getting a large scanned document under an email attachment size limit, speeding up uploads to a form or portal, or simply saving storage space for archived files.
How does compression actually shrink the file?
Each page is re-rendered as an image at your chosen quality level — lower quality settings produce smaller files, the same fundamental trade-off as compressing a JPEG photo.
Will my PDF's text still be selectable after compressing?
No — each page is re-rendered as an image to shrink the file, so the compressed PDF's text is no longer selectable or searchable. If you need to keep text selectable, this isn't the right tool.
Is my PDF uploaded to a server?
No. Compression happens entirely in your browser — your file never leaves your device.