Why this fits the old-PC constraint

The official guide names Windows 7 and says the package is both 32-bit and 64-bit compliant. That is materially different from editors that now require a 64-bit Windows 10 or Windows 11 installation.

Minimum requirements to verify

The published minimums are a 1 GHz processor, 1 GB RAM and 150 MB of available disk space. These are minimums, so large scanned documents and OCR may still need more memory and processing time.

  • Windows 7, 32-bit or 64-bit
  • 1 GHz processor or faster
  • 1 GB RAM or more
  • 150 MB free disk space or more

Buy only after a local test

Install the trial, open a representative PDF, test saving and—if required—run OCR. That confirms the real device works before the perpetual licence is attached to the account.

Limits to check before paying

  • Modern security support for Windows 7 itself is outside the software vendor's control.
  • OCR, activation, translation and updates require an internet connection.
  • Test the current build with the machine's drivers before paying.

Sources checked

Official SwifDoo PDF guide and system requirementsOfficial SwifDoo PDF technical specificationsOfficial SwifDoo PDF pricing and plan details