Don't take our word for it — turn off your Wi-Fi. Docexp keeps working. A site that runs with the network off cannot be uploading your files anywhere.
Make your file fit what the form is asking for
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. Plus 115 free tools to merge, compress, and convert PDFs, photos, and documents. All in your browser; nothing is ever uploaded.
Fix a photo for an upload form →Compress image to exact size (KB)
Shrink one or more images down to at or under a target file size in KB — for exam/application portals with strict upload limits ('photo must be under 50KB'), not just a vague quality slider.
The same exact-size idea for photos: 'signature under 20 KB', 'photo must be below 50 KB'. Set the KB target and Docexp binary-searches JPEG quality — and downscales if it has to — to land at or under it, instead of making you export at 60%, check the size, and try again.
How Compress image to exact size (KB) works
- Drop your file into the tool, or click to browse.
- Everything runs in your browser — no upload, no server, no waiting.
- Download your result straight to your device.
Good to know: Works on a single image or a whole batch (a batch downloads as a zip). A face or signature stays recognisable at surprisingly small sizes; an extremely tiny target on a detailed photo will visibly soften it, which is unavoidable at that byte count.
Common questions
Can I compress several images to the same size at once?
Yes — drop in multiple images with one target and each is compressed to fit, then they download together as a zip.