Initializing secure environment…
Initializing secure environment…
Compress a PDF to fit under 100 KB for an exam form, an ID upload or a government portal. The target is fixed rather than aspirational: the tool works towards it, shows the measured size at every step, and tells you plainly when the file cannot reach 100 KB without becoming illegible. Resolution, image quality, greyscale and metadata are all traded in the order that costs the least readability. Nothing is uploaded, no account, no watermark.
Compress a PDF to 100 KB free — no sign-up, no watermark, no upload. The measured size is shown at each step, and if 100 KB is not reachable without making the file illegible, the tool says so rather than pretending.
Rough arithmetic: a full A4 page in colour at 150 DPI is around 150 to 300 KB compressed, and in greyscale at 96 DPI around 40 to 80 KB. So one text page is trivially fine, one scanned page is borderline, and three scanned pages are not going to happen. Count the scanned pages before you start, because it determines whether the rest of the work is worth doing.
Metadata and unused resources first, because they cost nothing. Then image resolution, then colour, then image quality. Text is never touched, because rasterising text to save a few kilobytes is the worst possible trade on a document someone has to read. The order is the design, and it is why the result stays legible.
Three real options, in order of preference. Export only the pages the form actually requires, which is often one page. Convert to greyscale, which halves an image's data. Reduce the resolution to the point where the text is still readable and stop. What is not acceptable is a file at 100 KB that the department cannot read, because that is a rejection and a wasted afternoon.
Because a PDF can carry metadata, an embedded thumbnail and a document description, all of which are transmitted with the file and counted by some portals. Strip them with the privacy sweep, and leave 3 to 5 KB of headroom under the cap. A limit met exactly is a limit with no margin, and portals measure in ways that are not always documented.
Then it cannot, and the tool will say so rather than producing an illegible file and calling it a success. A colour scan of a full A4 page at readable resolution is around 150 to 300 KB on its own, so a three-page scan has a hard floor. The honest options are fewer pages, greyscale, or a lower resolution — and accepting any of those is your decision, not the tool's.
For a text document, yes — text costs very little, and 100 KB is plenty for several pages of type. The size is dominated by images. A page that is mostly text compresses to a few kilobytes, and the target is easily met; a scanned photo is where the difficulty starts.
By spending the budget on the right things. Text is never rasterised, so it stays vector and sharp. Images are downsampled, re-encoded and, where the document has no meaningful colour, converted to greyscale. Metadata and unused resources are dropped, which is free.
For text, resolution barely matters. For a photograph or a signature, around 96 to 150 DPI is the usable range at this size — lower becomes visibly soft, and higher cannot fit. The preview at the chosen size is the judge, not the number.
No, and it should not without being asked. Page count is a content decision, not a compression decision. If you need fewer pages, split the document or export only the pages the form asks for — both of which are explicit choices you should make.
Because the limit is on the file, and a PDF can carry a filename, a description or a thumbnail in its metadata, all of which count toward the uploaded size. Strip everything with the privacy sweep, and if it is still marginal, leave a few kilobytes of headroom rather than aiming exactly at the cap.
The generic compressor with a 100 KB goal is the same work, and this one is tuned for the fixed target and the decision points — fewer pages, greyscale, resolution — that a fixed cap forces. For 2 MB or 200 KB the equivalent pages exist, because the trade-offs are identical.
Yes. Free, no account, no watermark, and no upload. An ID document or an exam hall ticket is exactly the kind of file that should not be sent to a stranger's server, and this is the tool for that case.
More optional — all free, no upload.