PDF Tools
PDF Compressor
Compress a PDF by recompressing embedded images while preserving text and layout. Free online PDF compressor.
Upload PDF
Result
Compressed PDF will appear here.
How to Use
- Drag and drop a PDF file or click to select one.
- Adjust the image quality slider to balance file size against visual quality.
- Download the compressed PDF and compare the new file size with the original.
How Compression Works
This tool re-encodes every image embedded in the PDF as a JPEG at the chosen quality level and compresses the page content streams, while leaving the text, fonts, and layout untouched. Most of a PDF's file size usually comes from embedded images (scanned pages, photos, screenshots), so this approach typically achieves large size reductions with no visible loss in text sharpness.
Common Uses
- Shrinking a scanned document so it fits under an email attachment size limit.
- Reducing a PDF's file size before uploading it to a website or job application portal.
- Speeding up PDF sharing and storage when image quality only needs to be good enough to read.
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