Compress PDF
Shrink PDF file size while keeping the best quality possible.
Runs in your browser — files never leave your device
or drop files here
How to compress a PDF
Make PDFs smaller for email, WhatsApp and upload portals. Large images are resampled and recompressed, and the rest of the file is optimised losslessly — all on your device.
Add one or more PDF files.
Choose a compression level: Low, Recommended or Extreme.
Click Compress PDF and download the smaller file.
Compress PDF FAQ
It depends on what's inside. Scans and photo-heavy PDFs often shrink by half or more; PDFs made mostly of text are usually small already and change little.
Yes. Text, vector graphics and fonts are kept as they are; only large images are resampled.
No. Compression runs in your browser, on your device.
No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.
Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.
Guides
- PDF Too Large to Email? 5 Practical FixesEmail attachment limits are usually 20–25 MB. Here are five practical ways to send a large PDF: compress it, remove pages, split it by size and more.
- How to Compress a PDF Without Losing QualityMake a PDF smaller for email, WhatsApp and upload portals. Learn what makes PDFs big, which compression level to pick, and how to keep text sharp.
- How to Make Documents Fit Nepal's Online Form Size LimitsNepal's passport portal accepts scans of 300 KB or less. Here's how to scan, compress and check documents, photos and signatures so uploads go through.
More optimize tools
- Compress JPGNewShrink photos and signatures to a size you choose, like 50 KB.
- Increase PDF SizeNewMake a PDF bigger in KB to meet a portal's minimum file size.
- Increase JPG SizeNewMake a photo or signature bigger in KB to meet a form's minimum size.
- OCR PDFTurn scanned PDFs into searchable, selectable text.
- Remove AnnotationsStrip comments, highlights and markups from a PDF.