Ghostscript not detected in NAPS2 8.2.1.0 → no PDF compression options

[Jerome-ia]

Hi,
I'm using NAPS2 v8.2.1.0 on Windows 10 (64-bit).
I installed Ghostscript 10.06.0 (64-bit), but NAPS2 does not detect it, and no PDF compression options (JPEG / CCITT G4) are available.

ChatGPT mentioned that Ghostscript should enable built-in PDF compression in NAPS2,
but it seems not to be recognized at all — even though scanning (via TWAIN, Canon MG5350) works fine.

Steps to reproduce

1. Install NAPS2 v8.2.1.0 (standard installer)
2. Install Ghostscript 10.06.0 (64-bit)
3. Open NAPS2 → About → no mention of Ghostscript
4. PDF Settings → no compression options visible

Expected behavior
NAPS2 should detect Ghostscript automatically and enable PDF compression options.

Question
Is Ghostscript integration still supported in NAPS2 8.2.1.0,
or does it require a specific build (e.g., “with Ghostscript”)?

System info

• Windows 10 (64-bit)
• Ghostscript 10.06.0 (64-bit)
• Canon MG5350 (TWAIN driver)

Thanks again for maintaining this excellent open-source project!

[cyanfish]

https://en.wikipedia.org/wiki/Hallucination_(artificial_intelligence)