Compress to Exact Size (KB)
Hit an exact file-size limit - 20KB, 50KB, 100KB, 200KB, 500KB - for a form that won't accept anything bigger. Works on PDFs and images, right in your browser.
Your file never leaves your device
This tool runs entirely inside your own browser. Your file is not uploaded, not stored, and never reaches our servers. It is not a policy we promise to follow; there is simply no upload step in this tool at all. The one thing sent is a short note that you used the tool, for your own history.
Why an exact size?
Most compressors offer "low / medium / high" and leave you guessing. Indian government and university portals don't work that way — they state a hard number ("photo must not exceed 100 KB", "upload under 200 KB") and reject anything over it, however slightly. This tool takes the number instead of a vague quality setting, and gets as close under it as it can without wasting quality you didn't need to lose.
Free — unlimited use, no credits needed, no account needed.
Drag & drop your PDF or image here
or
PDF, JPG, PNG or WebP. Nothing is uploaded.
Common questions
Will the quality get ruined?
Only as much as the target forces. The tool spends its budget on quality first — it searches for the highest JPEG quality that still fits under your number, and only starts reducing the pixel dimensions if even the lowest quality can't get there. For a typical photo going to 100 KB you'll see almost no difference on screen.
My form wants a size range, like 20–50 KB. Will this work?
Yes. Set the upper number as your target. If the result lands below the range's floor, use the Exam Photo & Signature Resizer instead — it takes both numbers and guarantees the file lands between them, which is what those portals actually check.
What happens to a multi-page PDF?
Every page is re-rendered as an image and rebuilt into a new PDF at the quality needed to hit your target. That means the result is a picture of your document — the text in it is no longer selectable or searchable. For a form upload that's normally fine and it's the only way to hit a hard size limit; if you need the text to stay real text, use the regular Compress PDF tool instead.
Is my document really not uploaded?
Really. Everything happens in your browser, using its own image and PDF engines — there is no upload step in this tool at all. The only request made is a tiny one at the end recording that the tool was used, so it can appear in your history.
How to use Compress to Exact Size (KB)
How to compress a PDF or photo to an exact size (KB) online – step by step
Government and exam portals often reject files over a fixed limit. Compress to Exact Size (KB) shrinks a PDF or image to your exact target - 20 KB, 50 KB, 100 KB, 200 KB or any number you type - right inside your browser, so your document never leaves your device.
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Add your PDF or image
Drag your PDF, JPG, PNG or WebP onto the upload box or press Choose File. Nothing is uploaded to a server.
Step 1: Add your PDF or image -
Check the file
Your file name and current size are shown, and the target options appear underneath.
Step 2: Check the file -
Pick the target size
Press a chip such as 100 KB, or type your own number in KB. A line below repeats your choice in words so you are sure.
Step 3: Pick the target size -
Press Compress
Press the Compress button. The tool searches for the best quality that still fits under your number.
Step 4: Press Compress -
Download the small file
Press Download. The note shows the original and new size.
Step 5: Download the small file
Quick tips
- Leave Keep the original dimensions unticked for the best chance of a tiny size.
- If a form wants a range such as 20-50 KB, use the Exam Photo & Signature Resizer instead.
- Always check the result before you upload it to the portal.
Common problems & fixes
- The result is still above my limit
- Choose a smaller target; very large photos may need their dimensions reduced.
- Text in my PDF is no longer selectable
- To hit hard limits every page is re-drawn as an image; use Compress PDF if you need real text.
- The picture looks soft
- Choose a larger target size if the portal allows it.
Frequently asked questions
How do I compress a PDF to 100 KB?
Choose 100 KB (or type 100) and press Compress; the tool tunes quality to land under it.
How can I reduce a photo to 50 KB?
Upload the image, choose 50 KB and press Compress.
Is my file uploaded?
No. The compression runs entirely in your browser.
Is it free?
Yes, this tool is free and needs no account.