Why choose PGM over other formats?

PGM Grayscale offers simple format for grayscale image processing. It's widely used for scientific imaging, grayscale processing and image analysis, making it an excellent choice for most image needs.

Will my HEIF file be deleted after conversion?

No. Your original HEIF file is never modified or deleted. Xonvert creates a separate PGM copy — your source file remains untouched.

What image quality settings should I use?

For photos, use the High quality preset. For web graphics, Medium offers a good size-quality balance. The default preset works well for most use cases.

Does this work on my phone or tablet?

Yes. Xonvert works on any device with a modern browser — iPhone, iPad, Android phones and tablets all supported.

Can I undo a conversion?

Since your original HEIF file is never modified, there's nothing to undo. Your source file remains exactly as it was — only a new PGM copy is created.