Your file is processed on your device and is never sent to any server.
Need a PDF under 50 KB for an application form? Compress it to 50 KB in your browser — free, unlimited, and your file never leaves your device.
50 KB holds 1 text page at readable quality, but not at full sharpness. A single text-heavy page keeps about 68 DPI; fine print softens. A certificate with more white space does better: 0 pages stays sharp.
| Document | Pages kept sharp (about 100 DPI) | Pages kept readable (about 70 DPI) | One page reaches |
|---|---|---|---|
| Text-heavy scan (A4, greyscale, 150 DPI) | 0 | 1 | about 68 DPI |
| Certificate scan (A4, colour, 200 DPI) | 0 | 1 | about 86 DPI |
| Phone photo of a page (12 MP) | 0 | 1 | about 68 DPI |
Moving up to 80 KB adds room for no extra readable text page, only a little more detail. Dropping to 20 KB costs about 1 readable text page.
How we measured: this page's own compressor was run on three test documents of 1 to 30 pages, and the largest page count that stays under 50,000 bytes was recorded at each quality level. Your scans will differ with paper, ink and scanner, so treat these as a guide.
In our measurements, about 1 text-heavy scanned page at readable quality (0 kept sharp), or 1 certificate pages. A single page reaches about 68 DPI.
Most scanned PDFs can. The tool shrinks the images inside the PDF, so it works best on scans and photos; a PDF that is mostly text or vector drawings has little to remove, and the tool tells you the smallest size it could reach.
A single text-heavy A4 page keeps about 68 DPI at 50 KB in our measurements: readable, though fine print softens. Real text in a PDF (not a scan) is left untouched and stays sharp and selectable at any size.
It is the largest file the tool can produce that is still under the target, so you keep as much quality as the limit allows. It aims below 50,000 bytes, so it passes whether a portal counts a kilobyte as 1,000 or 1,024 bytes.
No. Compression runs in your browser on your own device. Nothing is sent to a server, which matters for ID cards, certificates and mark sheets.
Their document PDFs must be between 50 KB and 300 KB. A file below 50 KB is rejected as well as one above 300 KB, so do not compress further than you need to.
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