Other sizes
Compress PDF to 100 KB · Compress PDF to 200 KB · Compress PDF to 500 KB · Compress PDF to 1 MB · Compress PDF to 2 MB · Compress PDF (choose level)
Need an image under a size limit instead? Use compress image to 200 KB.
How to use the Compress PDF to 300 KB tool
- Choose the PDF (the target of 300 KB is already filled in).
- Wait a few seconds while it tries stronger settings until the file fits.
- Check the new size and press Download PDF.
Why SaralKit?
- Free forever: no "credits", no trial, no premium tier, no watermark and no daily limit.
- No account, ever: nothing to sign up for. Just open the page and use it.
- No data stored: your files and the numbers you type are processed by your own browser. We never upload, store or see them.
- Works offline: once the page has loaded, most tools keep working without internet.
- Open source: anyone can read the code on GitHub.
Frequently asked questions
How do I compress a PDF to 300 KB?
Choose your PDF on this page. The target is already set to 300 KB, so the tool tries stronger settings one after another until the file is 300 KB or smaller, then you download it. No sign-up and no upload.
Will the text still be readable at 300 KB?
Usually yes. The tool first shrinks only the photos and scans inside the PDF, which keeps text sharp. Only if that is not enough does it convert pages to images at lower quality. For very long documents, split the PDF and compress each part.
My PDF is still above 300 KB, what can I do?
Remove pages you don't need with Organize PDF, split it with Split PDF, or if it is a photographed document, recreate it from cropped photos with JPG to PDF.
Is it safe for certificates and ID documents?
Yes. Compression happens in your browser and the file never leaves your device.