File Format Guide
What is a .PDF file?
The PDF format (short for Portable Document Format) is a page-layout document format that can use either lossless or lossy compression depending on how it is saved. It locks in a fixed page layout that looks identical on any screen, printer, or device. PDF is an open, royalty-free standard that opens natively in every modern web browser.
.PDF at a glance
| Category | Document |
|---|---|
| Type | Page-layout |
| Compression | Mixed |
| Open standard | Yes |
| Opens in web browsers | Yes |
| Typical file size | Medium |
How to open a .PDF file
You can open PDF files with every browser, Acrobat, and Preview. If a program on your device cannot read one, the quickest fix is to convert it to a more common format — no software install required.
PDF pros and cons
Strengths
- preserves exact page layout, fonts, and formatting
- opens identically on every device
- print- and signature-ready
Limitations
- not designed for heavy text editing
- text extraction quality depends on how the PDF was made
What .PDF files are used for
- contracts, invoices, and forms
- reports and manuals
- sharing print-ready documents
Need to convert a .PDF file?
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