PDF Simplu
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Compress a PDF for the Planning Portal,
under 10 MB per document.

For planning applications in England and Wales. The 10 MB target is selected and your drawings stay on your device.

Compress PDF

Choose a PDF and a target size. You get a smaller PDF in which the text stays selectable.

Drop PDFs here

or choose files from your device

PDF files · up to 50 MB each

Processed in your browser. Your files aren't uploaded to any server.

No file selected.

Compress PDF · For the Planning Portal

What you need to know

What the Planning Portal accepts

According to the Planning Portal's FAQ (checked October 2026): each supporting document can be up to 10 MB, and ZIP files and executable files aren't accepted. Check the portal if you're unsure, as limits can change.

Large drawings and photos

  • Scanned plans are often far larger than needed: compress them here.
  • Split a large document set with Split PDF if one file is still too big.
  • Don't upload ZIP archives: add each PDF separately.

Quick guide

How to shrink a PDF without making it unreadable

Most large PDFs are large because of photos or scans. The tool shrinks the images and leaves the text and layout alone.

  1. Choose the PDFDrag the file into the area or pick it from your device.
  2. Choose a target sizeFor example 2 MB for a government portal or 10 MB for an email attachment.
  3. Download the smaller PDFYou see straight away how much smaller the file has become.

Frequently asked questions

Answers before you start

Will compression make plans unreadable?

At 10 MB, rarely. Check fine lines and dimensions by zooming in before you upload.

Are my drawings uploaded to PDF Simplu?

No. Everything runs in your browser.