Compress PDF for Upload

Reduce PDF size before uploading to online platforms — meet file size limits and speed up transfers.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Gollwng ffeiliau yma, neu cliciwch i bori

PDF dim cyfyngiad maint ffeil

Pori ffeiliau

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

💡 Scanned or image-heavy PDFs shrink the most with the image options. Text-only PDFs are usually already small — if nothing helps, we’ll tell you the file is already optimized rather than hand you a bigger one.

Upload PDF tips

📤

Many government and business portals limit uploads to 5–10 MB. Compress beforehand rather than getting rejected at the last step.

⚡

Uploading a 50 MB PDF takes minutes. Compressing it to 5 MB saves you time on every single upload.

📋

Online job applications, visa forms, and university portals all have PDF size limits. Pre-compression avoids the frustration.

💡

Test after compression — open the file and verify all pages, forms, and fonts look correct before submitting.

Sut Mae'n Gweithio

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Pam defnyddio ein un ni?

✓Hollol rhad ac am ddim - dim costau cudd, byth

✓Nid oes angen cyfrif, e-bost na mewngofnodi

✓Nid yw ffeiliau byth yn gadael eich dyfais

✓Dim cyfyngiadau maint ffeil o gwbl

✓Dim dyfrnodau ar unrhyw allbwn

Also check out…

📧

Compress PDF for Email

Shrink PDF files to send via email — stay under at

🗄️

Compress PDF for Archiving

Optimise PDFs for long-term storage — save disk sp

🔗

Compress PDF for Sharing

Make PDFs easy to share — smaller files download f

⚖️

Compress Legal PDF Documents

Reduce legal PDF file sizes without sacrificing re

Cwestiynau Cyffredin

Back to Cywasgydd PDF