Compress PDF
Shrink image-heavy PDFs so they fit email attachment limits and upload caps. The compressor downscales the images embedded in your document and re-encodes them at a quality you choose, while the text layer is left untouched — so words stay razor-sharp even as the file gets smaller. Pick a maximum width and a quality slider setting, then compress locally in your browser. Scanned documents, photo PDFs, and design exports typically shrink dramatically. No file ever leaves your device, which also means no upload wait for large scans.
Guide: How to Compress a PDF — step-by-step walkthroughHow to use Compress PDF
Add your PDF
Click the file picker and select the large PDF you want to shrink.
Tune the settings
Choose a maximum image width and quality level — lower values produce smaller files.
Compress and download
Click Compress PDF and save the smaller document to your device.
Tips for best results
- Start with quality 75 and 1600px width — a strong balance of size and clarity.
- Text-only PDFs barely shrink — compression targets embedded images.
- Lower the quality slider toward 40 for drafts; keep 85+ for final shares.
Frequently asked questions
How much smaller will my PDF get?
It depends on the content. Image-heavy scans and photo PDFs often shrink by half or more, while text-only documents change very little because their size comes from text, not images.
Will compressed text become blurry?
No. Only embedded images are downscaled and re-encoded — the text layer is copied untouched, so fonts remain perfectly sharp at any zoom level.