Compress a PDF to 1 MB

Portals cap file sizes to keep their storage and processing predictable — email attachments on strict servers, contact forms and portals that cap files at 1 MB are the classic cases. The limit is enforced automatically, so a file even slightly over gets rejected; compressing to just under 1 MB is the reliable fix.

Usually yes. For typical documents of a few pages, 1 MB preserves clearly readable text. Very long or image-heavy documents lose more sharpness — the tool always keeps the best quality that fits, and tells you honestly if the target couldn't be reached.

No. The compression runs entirely in your browser on your own device — nothing is transmitted. That matters, because size-limited uploads are usually IDs, certificates and application documents: exactly the files you don’t want on a stranger’s server.

Yes — and verifiably so. PDFAgent has no upload step: your file is processed by JavaScript running in your own browser and never leaves your device. You can open your browser’s network panel (or even go offline after loading the page) and confirm that no document data is transmitted.