altermypdf
altermypdf
Privacy & securityLicences

Compress PDFPreview

Make a PDF smaller by shrinking its photos and scans.

Drop a PDF to compress

PDF, or images to add as pages

Opened on this device. Nothing is uploaded.

  • Never leaves your deviceProcessed in this browser tab. Nothing is uploaded, and a security policy blocks the page from sending data to other sites.
  • Checked before savingEvery result is re-opened and verified against what you asked for.
  • No account, no watermarkFree to use. Nothing is added to your files.

How to use Compress PDF

  1. 1
    Open a PDF

    The current size is shown before anything changes.

  2. 2
    Choose a level

    Gentle, Balanced or Smallest, or a target size such as an upload limit.

  3. 3
    Compare and save

    See a zoomed before/after detail and the new size. Text and vector graphics stay sharp.