Compress a PDF to 100 KB
A hundred kilobytes is a hard limit for a PDF, and whether it is reachable depends almost entirely on how many pages you have. A single scanned page usually fits. Ten pages of photographs will not, at any quality worth uploading.
If it cannot be reached, the tool says so and gives you the smallest version it managed, rather than a file the form will reject. When that happens, the answer is usually to split the document and upload fewer pages at a time, not to push the quality lower.
Worth knowing before you start: each page is redrawn as a picture, so the text inside stops being selectable or searchable. For a scan that changes nothing. For a PDF you exported from a word processor, re-exporting the original at a lower quality is better than compressing it here.
Set below already, and editable. The numbers on the form you are filling in are the ones that count — application rules change, and this page is not the authority.
1. Choose a PDF
Drop a file here, paste it, or click to choose
Nothing is uploaded. The file stays on your device.
Questions
- Why can my PDF not reach 100 KB?
- Almost always page count. Each page needs a few tens of kilobytes to stay readable, so a five-page document has a floor well above 100 KB. Split it and upload the pages separately.
- Does compressing a PDF lose quality?
- Yes, and this page says so rather than pretending otherwise. Open the result and check the small print before you send it anywhere.
Other sizes
- Resize a photo to 20 KB
- Resize a photo to 50 KB
- Resize a photo to 100 KB
- Compress a PDF to 200 KB
- Compress a PDF to 500 KB
Need a different number? The PDF compressor takes any size you type. Everything runs on your own device, and nothing is uploaded to this site or anywhere else.