How to compress a PDF
1
Add a PDF
Use a scan or image-heavy PDF for best results.
2
Choose quality
Lower quality and scale make smaller files.
3
Download
The browser rebuilds a compressed image-based PDF.
Questions
Will it preserve selectable text?
No. This browser compressor rasterizes pages. Use it for scanned/image-heavy PDFs.
Are files uploaded?
No. PDF.js and pdf-lib run locally.
Why might a vector PDF get larger?
Vector/text-only PDFs are already efficient; rasterizing them can increase size.