Tool
Compress PDF to a Size Limit
Shrink a PDF to fit under a maximum size in KB or MB, with the achieved size shown.
Compress a PDF to a Specific Size in KB or MB
Upload portals, job applications, and email systems often reject a PDF over a hard limit: 200 KB, 500 KB, 2 MB. This tool takes that limit as an input. Enter the maximum size, and ConvertBrio compresses your PDF in steps, measuring the real file size after each one, until it fits.
Unlike a general compressor that just shrinks a file as much as it can, this tool works toward your number and tells you the truth about the result. It shows the size it reached, and if your limit is too small to hit without wrecking the pages, it says so instead of pretending.
How to use this tool
- 1
Upload your PDF
One file per run, up to 100 MB.
- 2
Enter the maximum size
Type the number from the form, then choose KB or MB.
- 3
Compress
We try progressively stronger settings and stop at the first result that fits under your limit.
- 4
Check the achieved size
The result message shows the size reached. Download the file, or try a larger limit if the target wasn't met.
How the exact-size search works
A single pass rarely lands on a specific number, so the tool runs a ladder of settings. Each step re-encodes the embedded photos from your original file at a lower resolution and quality than the last, starting gentle and getting stronger. After every step the actual output is measured. The first result at or under your limit is the one you get, which means you keep as much quality as your target allows.
When a target can't be reached
Some PDFs simply don't shrink much: files made of vector graphics or plain text are already small, and a 20 KB limit on a 40-page scan is unrealistic. If even the strongest setting leaves the file above your limit, the tool never reports success. It returns the smallest version it could make, shows that size, and suggests options such as a larger limit or splitting the PDF into parts.
What gets changed
Embedded JPEG images are re-compressed and, if very large, scaled down, and document properties such as title and author are cleared. Text, fonts, and page layout are left alone. Scanned PDFs made of photos benefit the most, while very small target sizes will make images visibly softer.
Privacy and limits
Files are encrypted in transit, processed automatically with no human review, and deleted within about 24 hours. Password-protected PDFs can't be processed.
Related Tools
Compress PDF to a Size Limit: FAQ
Common questions about compressing a PDF to a maximum size in KB or MB.
How do I compress a PDF to under 200 KB?
Upload the PDF, enter 200 and choose KB, then compress. The tool tries stronger settings until the file fits, or tells you the smallest size it could reach if 200 KB isn't realistic for that document.
Will it always hit my exact size?
No. It gets the file at or under your limit when that's possible without unacceptable quality loss. When it isn't, you'll see the smallest size reached instead of a false success.
Does the result end up exactly at my limit?
It ends up at or below the limit, usually somewhat under it, because settings change in steps rather than continuously.
Why did my PDF barely shrink?
PDFs made mostly of text and vector shapes are already compact. The biggest savings come from PDFs that contain photos or scanned pages.
Is there a quality difference from the regular Compress PDF tool?
Compress PDF applies one fixed level. This tool starts at the same level and only gets stronger if your limit requires it.
Is my document kept?
No. Uploads and results are deleted within about 24 hours and are never reviewed by a person.