Compress PDF to 5 MB
5 MB is a target built for big files. It isn't for tiny few-hundred-KB forms — it's for the genuinely large stuff: a full visa packet scanned end to end, a dozens-of-pages contract appendix, an application bundle full of high-resolution photos. These files often start at 20–60 MB, and bringing them to 5 MB makes them uploadable without crushing the content into mush.
The short answer
Yes, and 5 MB is a generous target, especially for large files. compress cat runs entirely in your browser — no upload, free, no signup — and makes a best-effort pass toward 5 MB. At about 5120 KB it's a common cap on visa, study-abroad, and government systems that accept larger attachments: a multi-page scanned bundle of dozens of megabytes usually slims down dramatically to 5 MB while staying clearly readable and keeping its searchable text layer.
Compress your PDF to 5 MB now
Common cases: exam sign-up ≤200KB, visa documents ≤1MB, government portals ≤500KB
This tool usesrasterizationto compress, which is best forscanned / photo-based PDFs. A text-only PDF becomes an image after compression, so youcan no longer copy or search the text — if you need selectable text, don't use this tool on a pure-text document.
5 MB is common on visa, study-abroad, and government upload boxes that accept larger attachments — ideal for slimming a full scanned bundle under the limit while keeping stamps, signatures, and other key details legible.
How do I compress a PDF to 5 MB?
Drop the large PDF into compress cat, set the target to 5 MB (about 5120 KB), and the tool optimizes the structure and sensibly downsamples high-resolution images, locally, to land near 5 MB. Nothing is uploaded — it all runs in your browser.
For a dozens-of-megabytes scanned bundle, 5 MB means a substantial compression ratio, but the tool still prioritizes readability — the text layer is usually fully preserved, and scanned pages typically stay clear after downsampling.
- Drop in PDF → set 5 MB target → download
- In-browser, no upload, free, no signup
- Built for big files: big size cut, readability kept
Will scans still be clear after compressing to 5 MB?
Usually yes. For most multi-page scans, 5 MB is plenty of room, so the tool can downsample without wrecking the reading experience — text stays legible and stamps and signatures remain identifiable.
Only when the original is enormous (say a hundreds-of-megabytes ultra-high-resolution full scan) does reaching 5 MB visibly drop per-page resolution. Even then, the result usually still meets the practical bar of 'clearly readable and reviewable.'
Why do visa and university systems often allow 5 MB?
Because what you're uploading is typically a whole bundle: passport, transcripts, bank statements, and letters scanned together — naturally large. A 5 MB cap splits the difference between limiting server storage and letting applicants submit complete scans.
If the system's limit is 5 MB, just use that target — it keeps more scan detail than forcing 2 MB, which matters when reviewers need to clearly read stamps, signatures, and fine print.
Frequently asked questions
Can I still search the text after compressing to 5 MB?
Generally yes. 5 MB has ample headroom, so text content usually avoids rasterizing and keeps a selectable, searchable text layer; pure image scans depend on whether the original had a text layer to begin with.
Should I pick 5 MB or 2 MB?
It depends on the limit and your file size. If the cap is 5 MB and you have a large scanned bundle, choose 5 MB to keep more detail; consider 2 MB only when the limit is stricter or the file isn't that big.
Is my file uploaded to a server?
No. The whole compression runs locally in your browser — nothing is uploaded, it's free, and no account is needed.
Updated · compress cat team