All PDF tools › Compress PDF
🔒 Your files never leave your device
Compress PDF Online
Reduce PDF file size for email and uploads, with three compression levels.
How to use
Reduce the size of a PDF so it fits email limits and uploads. This tool redraws each page as an optimized image, which works very well for scans and image-heavy files. Note that text becomes part of the image, so it can no longer be selected or searched.
- Add a PDF file.
- Pick a compression level.
- Press Start and compare the new size before downloading.
More PDF tools
🧩Merge PDFCombine several PDF files into one document in the order you choose.✂️Split PDFExtract pages, delete pages or split a PDF into single-page files.🗂️Organize PDFRotate, reorder and delete PDF pages with a visual drag-and-drop view.🖼️JPG to PDFTurn JPG and PNG images into a single PDF, with A4 or original size.📷PDF to JPGConvert every PDF page into a high-quality JPG image.
Frequently asked questions
How much smaller will it get?
Scanned and photo-heavy PDFs often shrink by 50–90%. Text-only PDFs may not shrink.
Can I search the text afterwards?
No. Pages are converted to images, so choose the Light level if quality matters most.
Is it free?
Yes. All tools are free, with no sign-up, watermark or limit on files.
Are my files uploaded?
No. Everything runs locally in your browser, so your documents stay private.
Does it work on mobile?
Yes. It works in modern mobile browsers such as Chrome and Safari.