The short version

Local-first processing means the browser performs a supported operation on your device instead of sending document bytes to a processing server.

  • Start with the smallest workflow that solves the problem.
  • Keep the original file until you have reviewed the export.
  • Check the tool limits and privacy mode before processing.

The basic flow

The browser loads application code, reads your selected file, performs the operation, and creates a download.

Understand the limits

Your device, browser, extensions, downloads, and file complexity still matter. Local processing is a clear model, not a universal security guarantee.

Frequently asked questions

When should I use this PDF workflow?

Use this guide when you need a clear, reviewable approach to how local pdf processing works in your browser.

Are my files uploaded?

Supported local workflows process documents in your browser.

Does it change the original?

No. PDFSwipe creates a new result and leaves the source file untouched.

What are the limits?

Current local limits: Free 5 MB/100 pages, Pro 20 MB/500 pages, Business 50 MB/2,000 pages.

Should I review the result?

Yes. Always check important exports in a trusted PDF reader.