Type the size you need and this free PDF compressor works towards it: 100 KB, 200 KB, 500 KB, 1 MB, 2 MB or any custom limit in KB. No watermark, no sign-up, no daily quota — and your file never leaves your device, because the whole job runs inside this browser tab.
Most online compressors hand you a vague low/medium/high slider and upload your document to a server. This one does the opposite: it finds the image objects inside your PDF, re-compresses them in place, and then binary-searches JPEG quality and image scale until the file lands under the size you asked for. Text, fonts, links and the page count are copied through untouched — no page is flattened into a picture.
Drop your PDF in — it is read from your disk into this tab and never uploaded.
Pick a target size: 100 KB, 200 KB, 500 KB, 1 MB, 2 MB or type your own in KB.
Press Compress. Up to eight attempts close in on the target; download the result and compare page 1 before and after.
Why not just turn every page into an image? That is the trick behind most "extreme compression" buttons, and it has two costs: your text stops being selectable and searchable, and a text-only PDF actually grows — a page of text is a few kilobytes of drawing instructions, while a photo of the same page is hundreds of kilobytes. This tool only re-compresses real images, so a text-heavy file is honestly reported as "nothing to gain" instead of being quietly ruined.
Load the PDF, choose a target such as 200 KB or 1 MB and press Compress. The tool re-encodes the images inside the file and runs a binary search over JPEG quality (0.35 to 0.9) and image scale (30% to 100%) — up to eight attempts — keeping the best-looking version that still fits under your target.
100 KB, 200 KB, 500 KB, 1 MB and 2 MB are one click away, and the custom box accepts any value between 20 KB and 20000 KB. Each preset also has its own page, so you can bookmark the size you keep needing.
No. The PDF is opened and rebuilt inside your browser with pdf-lib and pdf.js, so nothing is sent anywhere. There is also no queue, no two-file limit and no three-tasks-per-hour cap like the well-known online compressors put on free users.
Yes. Only image objects are re-encoded; text, fonts, links, bookmarks and the page structure are carried through exactly as they were. Your PDF stays searchable and copy-pasteable, and the page count never changes.
You get the smallest version the tool managed plus an honest explanation, usually that text, fonts and page structure already fill most of the file and no image setting can go below that floor. If there is nothing to gain at all, the tool says so and leaves your original alone.