Compress PDF to X KB
Shrink a PDF to the exact size required (100 KB, 200 KB, 500 KB, 1 MB or any other): the tool tries quality and resolution until it fits.
How to useCompress a PDF to an exact size.
Available in: 
Compress PDF to X KB: what it is for
Type the maximum size the website accepts (or tap 100 KB, 200 KB, 500 KB, 1 MB or 2 MB) and the tool compresses the PDF until it fits, looking for the highest resolution and best quality possible. A chart shows each attempt against the limit, and at the end you see the final size, the resolution in dpi and the quality used. Ideal for job and university applications, visa forms and government portals. Pages become images, so the text is no longer selectable.
Everything runs in your browser: nothing you paste or open is sent to a server.
How to use
- Choose the PDF.
- Type or tap the maximum size.
- Click compress and download the PDF.
When to use it
- Upload documents to application portals.
- Attach PDFs on government sites with size limits.
- Send résumés and proofs through online forms.
Frequently asked questions
Why compress to a specific size?
Many application portals, universities, government sites and HR systems only accept PDFs up to 100 KB, 200 KB, 500 KB or 1 MB. Instead of trying over and over, type the limit and the tool finds the best quality that fits.
How does it reach the size?
It turns each page into an image and tests combinations of resolution and JPEG quality, from best to worst, until the file is under the limit with the sharpest result possible. The chart shows every attempt.
Is the text still selectable?
No: pages become images, like a scanned document. If the PDF has many pages and the limit is small, it may get hard to read; in that case, split the PDF first.
Is my PDF uploaded to a server?
No. Everything happens in your browser.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 are free.