PNM to HEIF Converter
Convert your pnm files to heif online & free
High Efficiency Image File
How to convert PNM to HEIF
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to heif"
Choose heif or any other format you need as a result (more than 200 formats supported)
Download your heif
Let the file convert and you can download your heif file right afterwards