Compress a PDF to under 300 KB
Under 300 KB, as the upload form asks.
Drop files here
or click to choose from your deviceAccepted: PDF
One file per runUp to 20 MB per file5 runs per dayFree PDFs end with a small “Made with nouplo.com” lineRemove limits with Pro✓ Works offline
Your files stay on your device
This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.
Example
Worked example — Compress PDF to 300 KB
Use the following inputs and settings.
| Item | Value |
|---|---|
| Input | three.pdf · 3 · A4 · Page 1 / Page 2 / Page 3 |
| Output files | 1 |
| Output | three-compressed.pdf |
| PDF pages | 3 |
| File size | 2374 B |
Expected result — Output files: 1.
How it works
- Drop the PDF the form asks for — a scan, a certificate, a filled form.
- Press Compress to 300 KB: settings are tried from gentle to strong until the file fits.
- Download it and check the size shown before you upload.
Frequently asked questions
- Will the text stay sharp?
- Text that is real text is not touched at all. Scanned pages are images, so they are re-encoded — at 300 KB a few pages stay clearly readable.
- What if it still does not fit?
- You get the smallest version it could make and its size. Remove pages you do not need, or scan in greyscale at 150–200 dpi, and try again.
- How is the size counted?
- The result stays under 300,000 bytes, so it passes whether the form counts a kilobyte as 1,000 or 1,024 bytes.
- Is my file uploaded?
- No. The PDF is opened, re-encoded and rebuilt in your browser tab, so certificates and ID scans never leave your device.
Made for a specific use
Related tools
⇲ Compress PDF Make a PDF smaller for email or upload limits without sending it to anyone. ⧉ Merge PDF Combine PDFs into one document, in the order you choose, without sending them anywhere. ⋈ Split PDF Cut one PDF into several files by page ranges, one file per page, or parts under a size limit. ▣ PDF to JPG Export each page as an image you can drop into a slide, a chat or a website.