Compress PDF
Compress PDF shrinks a PDF's file size by re-rendering its pages at an adjustable quality — ideal for email attachments and uploads. Everything runs in your browser, so your file is never uploaded.
🔒 Compression runs in your browser — your PDF is never uploaded. Note: pages are rasterised, so text becomes part of the image.
How to use Compress PDF
- Choose a PDF file.
- Adjust the quality and resolution sliders.
- Click Compress, then download the smaller PDF.
Frequently asked questions
How does the compression work?
Each page is re-rendered to a compressed image and rebuilt into a new PDF. This works especially well for scanned or image-heavy PDFs.
Will the text still be selectable?
No — because pages are rasterised, text becomes part of the image. Use PDF to Text first if you need the text.
Is my PDF uploaded?
No, compression happens entirely in your browser.
Related pdf tools
Merge PDF
Combine multiple PDF files into one document in any order — free, fast and 100% private. Files never leave your browser.
Split PDF
Extract pages or page ranges from a PDF into a new file — free, private and entirely in your browser. No uploads, no sign-up.
Rotate PDF
Rotate the pages of a PDF by 90°, 180° or 270° and download the fixed file. Free, private, runs entirely in your browser.
JPG to PDF
Convert JPG, PNG and WebP images into a single PDF document — free and private, with no uploads. Reorder images before converting.