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Fill forms, sign and fix pages — free, no install.

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How to compress a PDF to 100 KB

Job portals, government forms and visa applications often demand PDFs under 100 KB. This page opens our compressor with Extreme compression pre-selected — the strongest setting. Scanned documents of a few pages typically land well under 100 KB; very long or high-detail documents may end up larger, in which case splitting the PDF into parts first (see Split PDF) gets each part under the limit.

Frequently asked questions

Will my PDF definitely be under 100 KB?

Most 1-5 page documents will be. The final size depends on page count and content — the result screen always shows the exact size before you download.

Does 100 KB compression ruin quality?

Text stays readable; fine detail softens. For strict upload limits that trade-off is usually exactly what you need.