The result is 196KB. Why not much smaller?

Because the compressor keeps the highest quality that fits. Each quality level is tried and measured, and the first one that lands at or under 200KB is kept, so the result deliberately sits close to the cap. Type 150 into the size box if you want a lighter file for an email or a slow connection.

Does the page size change after compression?

No. An A4 page stays 210 × 297 mm, or 595 × 842 points, whichever stage was used. Even when pages are rebuilt as pictures, each picture is placed on a page of the original size, so the file prints as before.

My declaration was signed on a tablet and saved as a PDF. Will it still be a text document?

Usually, yes. A PDF made by a form program contains real text plus a small image or vector drawing of the signature, so the first or second stage brings it under 200KB with the text intact. The result card reads structure only or photos re-compressed, text kept in that case.

Is it better to upload one 200KB PDF or three separate files?

If the portal has one field per document, use them: each file then has the whole 200KB to itself and keeps more detail. If there is a single field for all documents, merge them first and compress the combined file here, scanning in greyscale to make room.

Compress PDF to 200KB Online

Of all the limits on document fields, 200KB is the one searched for most often, and for a reason: it is the cap that recruitment boards, scholarship portals and university admission forms in India use again and again. It is roomy enough for two or three scanned pages at readable quality and tight enough that nothing straight out of a scanner app passes without help.

Everything here is preset to 200KB. The compressor repacks the file first, re-compresses the scanned pages only when it has to, and shows which of the two happened on the result card. Signed declaration pages, the usual occupant of a 200KB field, are discussed below along with the choice between colour and greyscale.

A person signing a printed document with a black pen on a dark table

How to use it

Drop the PDF onto the box above. Files from any scanner app, a photocopier or an office export are all accepted.
Wait while the tool searches for the highest scan quality that keeps the whole file under 200KB.
Check the result card: it shows the page count and whether the text was kept or the pages became pictures.
Download the PDF. If the portal has a second field with the same cap, drop the next file in.

How many pages fit, and at what quality

A greyscale scan at 150 DPI weighs about 150KB to 400KB per A4 page as a JPEG, and the second stage brings each page down to a third or a quarter of that by lowering JPEG quality in measured steps. Two pages of ordinary printed text therefore fit under 200KB with the letters sharp, and three pages fit with slight softening of the smallest print. The fourth page is typically where the compressor has to scale the scans down, and the fifth or sixth where it gives up on the embedded images and rebuilds the pages as pictures instead.

Colour or greyscale

A colour scan weighs noticeably more than a greyscale scan of the same sheet, because JPEG has to store colour as well as brightness, and a 300 DPI colour scan of an A4 page starts at 1MB to 3MB against 150KB to 400KB for 150 DPI greyscale. Unless the portal is checking a colour photograph, a hologram or a red office seal, scanning in greyscale buys an extra page or two within the same 200KB. Scanner apps also offer a black-and-white mode; it makes tiny files, but it destroys light pencil marks and faint stamps, so greyscale is the safer middle choice.

Signed declarations and self-attested copies

The document that most often has to meet 200KB is a declaration printed, signed in ink and scanned back, or a self-attested copy with a signature across it. A signature is thin ink on white paper and costs almost nothing; what drives the size is the paper texture and shadow a phone camera adds around it. Scan on a flat surface in even light and let the app crop to the edges. A signed page produced that way typically lands under the limit as a clean re-compressed scan, or with its text still selectable if the original was a digital PDF with the signature stamped in.

Frequently asked questions

The result is 196KB. Why not much smaller?: Because the compressor keeps the highest quality that fits. Each quality level is tried and measured, and the first one that lands at or under 200KB is kept, so the result deliberately sits close to the cap. Type 150 into the size box if you want a lighter file for an email or a slow connection.
Does the page size change after compression?: No. An A4 page stays 210 × 297 mm, or 595 × 842 points, whichever stage was used. Even when pages are rebuilt as pictures, each picture is placed on a page of the original size, so the file prints as before.
My declaration was signed on a tablet and saved as a PDF. Will it still be a text document?: Usually, yes. A PDF made by a form program contains real text plus a small image or vector drawing of the signature, so the first or second stage brings it under 200KB with the text intact. The result card reads structure only or photos re-compressed, text kept in that case.
Is it better to upload one 200KB PDF or three separate files?: If the portal has one field per document, use them: each file then has the whole 200KB to itself and keeps more detail. If there is a single field for all documents, merge them first and compress the combined file here, scanning in greyscale to make room.