Compress PDF

1. Choose an ordinary, non-password-protected PDF under 80 MB.
2. Try Structural optimization first, which retains searchable text but may not reduce the file size.
3. If size is the priority, choose Image-based compression, quality and scale; understand that pages become images without selectable text.
4. Download and compare the result with the original. Keep the original file.

Structural optimization can make some PDFs larger and cannot always recompress embedded streams. Image-based compression rasterizes pages, removes searchable/selectable text, links, annotations, forms, signatures and accessibility tags, and can change quality. Up to 30 pages and 80 MB. Files stay on your device. External PDF library scripts must load.