Quick definition
PDF is a fixed-layout document format built for sharing, printing, archiving, contracts, invoices, resumes, and forms.
Best use cases
Final documents where layout should stay consistent across devices.
What to watch out for
PDF files can be hard to edit directly and may become large when they contain scans or images.
Related converters
Conversion tip
Keep the original file, create a converted copy, then compare file size, quality, and compatibility before deleting or uploading the result.