How to use Compress PDF to 100 KB
- Add the PDF. A one- or two-page scan or certificate works best at this size.
- The limit is already set to 100 KB. Leave "turn pages into pictures" on if the form only needs a readable copy.
- Click "Compress to 100 KB" and save the file.
- Check the size shown before uploading it to the form.
Why use Compress PDF to 100 KB
- Limit already set
- Opens with 100 KB chosen, so one click does the job.
- Best quality that fits
- Smaller settings are tried in turn and the first one under 100 KB is kept.
- Scans and certificates
- A single scanned page at this size stays readable, which is what most portals check.
- Nothing uploaded
- The PDF never leaves your device.
About this tool
100 KB is a tight limit: enough for one or two scanned pages at a readable size, or a few pages of plain text. Pictures are scaled down first; when that is not enough, each page is drawn as one compact picture, like a scanner app does, and the tool tells you. A long, picture-heavy document may not reach 100 KB; split it first or upload only the pages the form asks for.
The tool stays just under 100,000 bytes, which satisfies portals that count a kilobyte as 1000 bytes and those that count 1024. The result shows the final size, how many pictures were shrunk and whether pages had to become pictures, so you know what you are uploading before you upload it.
Frequently asked questions
My PDF would not get under 100 KB. What now?
Split it and compress only the pages the form needs, or scan the document again at a lower setting. Ten or more scanned pages rarely fit in 100 KB at a readable size.
Will the text still be selectable?
If shrinking the pictures was enough, yes. If pages had to become pictures to reach 100 KB, the result says so and the text on those pages can no longer be selected.
Does a form count 100 KB as 100,000 or 102,400 bytes?
Portals differ, so the tool stays just under 100,000 bytes, which satisfies both.
Is my PDF uploaded?
No. Everything happens in your browser.
PDF ka size 100KB tak kam kaise kare? (Can I get a PDF under 100 KB on my phone?)
Yes. The tool runs in the browser on iPhone and Android as well as on a computer, with the limit already set: add the PDF, tap "Compress to 100 KB", then save the file to Files or share it straight to the portal app.
Built and maintained by Saad Naeem
AI engineer, Doha · Updated