How to compress your PDF
- 1
Add your PDF.
- 2
Check the 1 MB target, or type the limit you need in KB or MB.
- 3
Click Compress and download the smaller PDF.
Choose your exact target size
Type the limit from the form or website (in KB or MB). The tool keeps compressing until the file fits, then stops, so you don’t lose more quality than needed.
Private by design
Your file is processed by your own browser, in memory. It is never uploaded, stored or seen by anyone, and the page’s security policy blocks it from sending data to other servers.
Frequently asked questions
How do I reduce mb of PDF?
Add your PDF. Check the 1 MB target, or type the limit you need in KB or MB. Click Compress and download the smaller PDF. It is preset to get the file under 1 MB and shows the final size.
How to shrink mb size of PDF?
Add the PDF, choose a compression level (or a target size), then click Compress PDF. The result shows the before and after size.
How to reduce PDF kb size for free?
Yes. There is no sign-up, no watermark, no daily limit and no paid tier hiding the useful settings. Because your device does the work, it costs us almost nothing to run.
Will compression make my PDF blurry?
Text and vector graphics are never touched, so they stay sharp. Only images are recompressed. Light keeps images close to the original; Strong is visibly softer on photos.
Why didn’t my PDF get much smaller?
PDFs made from text (exported from Word, for example) contain few images, so there is little to compress. Large savings come from scans and photos.
How small does a PDF need to be for email?
Gmail and Yahoo accept attachments up to 25 MB, Outlook.com up to 20 MB. Staying under 10 MB is safest because some company mail servers set lower limits.