PDF File Format: Uses, Strengths, Limitations and Conversions
A practical guide to PDF files, including when to use them, what they preserve well, and when another format is better.
What is PDF?
PDF (Portable Document Format) is designed to preserve the appearance of a document across devices and operating systems. A PDF can contain text, images, vector graphics, fonts, forms and other document elements while keeping a fixed page-oriented layout.
Common uses
- Final documents that should look consistent when shared or printed
- Invoices, reports, forms, manuals and application documents
- Documents that need predictable pagination and print output
Advantages
- Stable page layout
- Widely supported on computers and mobile devices
- Good fit for sharing and printing
- Can include searchable text, images, forms and vector graphics
Limitations
- Editing is less natural than in a word processor
- Complex PDFs can be difficult to convert back into an editable document
- Scanned PDFs may contain images rather than selectable text
- Compression results depend on how the source PDF was created
Compatible software
PDF files can be opened by modern browsers and dedicated PDF readers. Many office applications can also import or export PDF, although complex layouts may not round-trip perfectly.
When should you use it?
Choose PDF when the final appearance matters more than easy editing.
Consider another format: Use DOCX or another editable document format when recipients are expected to substantially revise the content.