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Compress a PDF to 200KB
Two hundred kilobytes is the most common cap on official upload forms, and it is the first limit that is genuinely comfortable. A scanned document usually fits without looking compressed.
Files never leave your browser
Why so many forms land on 200KB
The number looks arbitrary until you see it from the other side. A registration portal expecting a hundred thousand applicants, each uploading four documents, is budgeting storage: 100,000 × 4 × 200 KB is about 80 GB. That is a number a government IT department can sign off on. At 2 MB per file it becomes 800 GB, and it will not be signed off.
So 200 KB is not a quality judgement about your document. It is a storage budget divided by the number of people applying, and it is why the same figure keeps appearing on scholarship forms, civil service registration, university admissions and visa portals that have nothing else in common.
Knowing that is useful in one practical way: the limit is rarely negotiable, but it is also rarely checked for quality. You need to be under it and readable, not beautiful.
What actually fits in 200KB
Measured on ordinary scans, at 200 KB you can expect roughly:
- One or two scanned pages — comfortably readable, small print intact.
- Three to five pages — readable body text, with stamps and signatures starting to soften.
- Ten or more pages — legible only if the original was clean black-on-white with no photographs.
A colour photograph of a document — the kind taken with a phone rather than a scanner — costs far more than a flat scan of the same page, because the paper texture, shadow and slight colour cast all have to be encoded. If your file is phone photographs, expect roughly half as many pages to fit.
Landing just under, not far under
Ask most tools for 200 KB and they hand back 60 KB. That looks like a bigger win and is actually waste: every kilobyte you did not spend was sharpness given away for nothing, and the form would have accepted 199 KB just as happily.
This one searches for the highest quality that still fits under the limit you set, then stops. It reports the size it reached and the approximate resolution, so you can see what you got rather than trusting a green tick.
Everything happens on your own device. That matters more here than on most pages, because the documents people compress to 200 KB are certificates, transcripts and identity papers — exactly the files that should not be handed to someone else's server for a task this small.
Nothing is uploaded, and you can prove it
The file is read from your disk, rebuilt in your device's memory, and handed straight back as a download. There is no server here doing the work, which is also why there is no daily limit, no account and no watermark.
That is not only a promise. This page is served with a Content Security Policy containing connect-src 'self', which instructs your browser to refuse any connection to another address. Open your browser's network tab and watch nothing leave — or load the page once, disconnect from the internet, and compress anyway. It still works.
Other PDF size limits
Set any other limit, quality or resolution on the main Compress PDF page, or read how upload size limits actually work.