About the PUB file format
PUB File Format (PUB) stores document or productivity content that can be rendered into a shareable image.
The guide and converter lists are generated from the live HEIC.now catalog, so every conversion shown here is an available workflow.
Why PUB files are used
PUB File Format files belong to the office and data family and use the .pub extension.
The most practical format depends on the software, quality, compatibility and file-size requirements of the destination workflow.
What to know about PUB
File structure
PUB has format-specific rules for storing image, document or media data.
Quality
Conversion can change compression, colour, metadata, resolution or editability.
Compatibility
Support for PUB varies between browsers, operating systems and editing applications.
Original files
Keep the original PUB when future editing or maximum retained information matters.
How PUB conversion works
Converting PUB decodes or renders the source and then encodes the result in the selected destination format.
Review the converted file before replacing the source because format-specific features may not transfer.
heic.now accepts PUB as an input and converts it to supported outputs.
PUB compatibility and software support
Check that the receiving browser, app or service supports PUB before choosing it for delivery.
A JPG or PNG copy is often useful when broad image compatibility is the priority.
PUB and related formats
When should you use PUB?
- Sharing: Create a file the recipient can open without specialist software.
- Publishing: Prepare content for a website, app or content-management system.
- Editing: Move content into a format supported by the next editing application.
- Archiving: Keep the original and create practical access copies for everyday use.
Convert from PUB
Use PUB as the source.
PUB file format FAQ
What is a PUB file?
PUB File Format (PUB) stores document or productivity content that can be rendered into a shareable image.
Can HEIC.now convert PUB files?
heic.now accepts PUB as an input and converts it to supported outputs.
What changes when PUB is converted?
Converting PUB decodes or renders the source and then encodes the result in the selected destination format.
Should I keep the original PUB file?
Review the converted file before replacing the source because format-specific features may not transfer.