Compress PDF to 300 KB — Free, In Your Browser
- Files stay on your device
- Free, no sign-up
- No watermark
- Works offline after first use
Compress your file
Target : 300 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 300 KB or less. A larger PDF is saved as images, so its text is no longer selectable; a smaller one keeps it.
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
- Keep only the pages the form asks for: every page takes a share of the 300 KB.
- Black-and-white scans compress better than color photos of documents.
- Crop phone photos of documents to the paper edge before making the PDF.
- If the form allows several files, split a long document instead of squeezing it into one.
Frequently asked questions
Why can't I select text after compressing?
To fit in 300 KB, each page of a larger PDF is rendered as an image. The document looks the same but is no longer searchable. A PDF already under 300 KB keeps its text.
How many pages fit in 300 KB?
A few pages of a scan stay readable. The more pages, the less detail each one gets, so send only what the form asks for.
Is 300 KB 300,000 or 307,200 bytes?
Forms differ. The tool targets 300,000 bytes, which passes either way.