Compress PDF
To compress a PDF, add the file, pick the size you need (for example 500 KB) or a compression level, and press Compress. Your file is never uploaded: everything happens in your browser, so it stays on your device.
Your file never leaves your deviceHow to verify
Drop files here or click to choose
About Compress PDF
Compress a PDF to a target size such as 100 KB, 500 KB or 1 MB, or pick a low, medium or high compression level. It helps when an email bounces, a job portal rejects your upload or a scan is simply too heavy. Images are recompressed only when that makes them smaller, while text stays sharp. Everything happens in your browser, so your PDF is never uploaded and stays on your device.
How to use Compress PDF
- Add the PDF you want to shrink.
- Choose a target size or a compression level.
- Press Compress and download the smaller file.
When it helps
- Get a scanned ID or certificate under the size limit of an online application.
- Shrink a photo-heavy report so it fits as an email attachment.
- Reduce a CV with images to the size a job portal accepts.
- Make long scanned contracts lighter before storing or sharing them.
Tips
- Pick the size the upload form asks for, or the nearest one below it.
- If the target is not reached, try converting pages to images, but note the text will no longer be selectable.
- Remove unneeded pages with Organize PDF first, so more of the size budget goes to the pages you keep.
Frequently asked questions
- Does compressing reduce quality?
- Only images are re-encoded, and only when that makes them smaller. Text and vector graphics are not affected. For a very small target, images are saved at lower quality or resolution.
- Is my file uploaded?
- No. The file is compressed entirely in your browser and never leaves your device.
- Can I get a PDF under 100 KB?
- Often, but not always. It depends on what is inside: scanned pages and large photos shrink a lot, while a file that is already small or mostly text may not go that low. The tool tells you whether the target was reached, and you can pick a higher one.
- Can I choose my own target size?
- Yes. Choose Custom and enter a size in KB or MB; the smallest target is 10 KB.
- Can I compress a password-protected PDF?
- Yes, after entering its password. The compressed copy is not password-protected and its bookmarks and form fields are not kept, so protect it again if needed.