When to compress a pdf on iphone

Reduce file size when email or an upload portal has a limit, while keeping the text readable enough for its purpose.

Start with a clean source and decide what the recipient actually needs. A smaller or shorter file is not automatically better if it removes context, legibility, or pages the recipient expects.

  • Meet an upload size limit
  • Make an image-heavy scan easier to send
  • Create a lighter convenience copy while retaining the archive original

Verify the result, not only the action

Compression mostly affects page images. Zoom into the smallest print, faint stamps, signatures, and QR codes; a file that opens successfully can still be unusable.

Keep the original file until you have opened the new copy, checked page order and orientation, and confirmed that it works in a second PDF reader when compatibility matters.

How it works

  1. 1

    Open the source

    Choose the PDF or images you want to work with.

  2. 2

    Set the scope

    Choose a quality level appropriate for the smallest important detail.

  3. 3

    Create a new copy

    Run the operation without replacing the source you may still need.

  4. 4

    Inspect and share

    Open the output, check it carefully, and only then send or archive it.