Getting a PDF under 100 KB usually means two steps: compress with the Extreme level, then check the result. Scans of a few pages often land under 100 KB in one pass; long documents need splitting.
The 100 KB target comes from upload portals — visa forms, job applications and government systems frequently cap attachments at 100 KB or 200 KB.
Frequently asked questions
Can any PDF reach 100 KB?
Text-only PDFs often can. Multi-page scans may need the Extreme level, a lower scan resolution, or splitting into parts.
Will text stay readable at 100 KB?
Yes — compression reduces image data, not the text layer.
What if it is still too big?
Split the PDF into 2–3 parts with Split PDF and upload the parts separately, or delete blank pages first.
Do it in the full tool
Open Compress PDF for all options, or jump straight to another step below.