Compress PDF to 500 KB — Free, Private, No Upload
- Files stay on your device
- Free, no sign-up
- No watermark
- Works offline after first use
Compress your file
Target : 500 KB
Drop a file herePick a file from your device
or paste it from the clipboard
Processed on your device. Nothing is uploaded.
Pick a PDF and get a copy of 500 KB or less. Lossless mode keeps text selectable; image mode saves pages as pictures and reaches much smaller sizes.
How it works
- Choose a PDF document.
- Lossless mode re-saves the file without touching the content; guaranteed mode turns the pages of a file over the limit into images.
- The tool finds the highest resolution and quality that fit the limit.
- Download the smaller PDF.
Didn’t fit? What to do
- Scanned documents shrink well in image mode: they are already pictures, so little is lost.
- Remove pages the form does not need, such as blank pages, before compressing.
- If the form accepts several files, split a long PDF instead of squeezing it into one.
- In image mode, every page shares the 500 KB: the more pages, the less detail each one keeps.
Frequently asked questions
Will the text stay selectable?
In lossless mode, yes. In image mode, pages become pictures, so text can no longer be selected or searched.
Why is my PDF still over 500 KB in lossless mode?
Lossless mode cannot shrink much when pages are large photos or scans. Image mode re-saves each page as a compressed picture and reaches far smaller sizes.
Is 500 KB 500,000 or 512,000 bytes?
Forms differ. The tool targets 500,000 bytes, which passes either way.