Compress a PDF Online for Free
Reduce the size of image-heavy documents with this free PDF compressor. It rebuilds pages as JPEG images, so searchable text, forms, links, and signatures are not preserved.
Arrange your pages
Use the arrows to move pages, rotate them, or remove what you don’t need.
All sorted.
Download PDF ↓How to use this free Compress PDF tool
- Choose a PDF of up to 80 pages.
- Select a resolution and image quality suitable for your document.
- Create the PDF, compare its reported size, and keep the smaller version.
What to know before you start
Your original file stays unchanged. Choose an unlocked PDF. Keep total input under 50 MB and output under 300 pages. Image-rendering tools have an 80-page limit and additional memory limits.
Check the downloaded result before sharing it. PDF changes can affect forms, annotations, links, bookmarks, or existing digital signatures.
Frequently asked questions
Is Compress PDF free to use?
Yes. This PDFSwan tool is free, with no payment or signup required. File and page limits apply. Create a free account only if you want to save custom workflows.
Will compression always make my PDF smaller?
No. Already-optimized or text-heavy PDFs may become larger. PDFSwan reports the size change so you can keep the original when it is smaller.