How to compress your PDF
- 1
Add your PDF.
- 2
The Light level is preselected to keep quality as high as possible.
- 3
Click Compress and download the smaller PDF.
What “without losing quality” really means
Every PDF compressor trades size for image detail. This one never touches text, fonts or vector drawings, which is where readability lives, and the Light level only re-encodes large images at high quality.
On a typical scanned document, Light still saves 30–60% with no visible difference at normal zoom.
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 compress PDF high quality?
Add your PDF. The Light level is preselected to keep quality as high as possible. Click Compress and download the smaller PDF.
How to compress a PDF without losing quality?
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 compress PDF without losing quality?
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.
Is it safe to use with confidential documents?
Yes. The file is opened by your own browser and processed in your device’s memory. It is never uploaded, so no server, including ours, ever receives a copy. That makes it suitable for contracts, IDs, medical or bank documents.