Remove pages you don't need
Fewer pages means every remaining page keeps more of the size budget — split the document first if the portal only wants one section.
Compress a PDF to 100 KB
100 KB is the strictest limit most job and exam portals set for a certificate or ID scan. The target below is already set to 100 KB, and the whole job runs inside this browser tab — no account, no upload, no watermark.
Compress a PDF
Shrink heavy, image-rich or scanned PDFs so they fit inside upload and email limits.
Drop a PDF here
Works best on scans and image-heavy documents
Getting a PDF under 100 KB without wrecking it
Scans compress hardest
A photographed or scanned page is an image, so it costs far more than typed text. Scanning in grayscale at 200–300 DPI helps a lot.
Check the real final size
The tool reports the exact bytes it produced, so you can confirm it is truly under 100 KB before uploading anywhere.