Format comparison
PDF vs JPG
How do PDF and JPGcompare? Here's everything you need to know to choose the right format — and how to convert between them.
Portable Document Format
PDF is the universal standard for sharing documents. It preserves formatting, fonts, and layout across all devices and operating systems. From contracts to resumes, PDF is the format the world relies on.
.jpg
Full guide →Joint Photographic Experts Group
JPG (also known as JPEG) is the most widely used image format for photographs and complex images. It uses lossy compression to significantly reduce file size while maintaining acceptable visual quality.
| Specification | JPG | |
|---|---|---|
| Full name | Portable Document Format | Joint Photographic Experts Group |
| Extension | .jpg | |
| MIME type | application/pdf | image/jpeg |
| Category | Document | Image |
| Developer | Adobe Systems | Joint Photographic Experts Group |
| Year introduced | 1993 | 1992 |
PDF advantages
- Consistent display on all devices
- Supports digital signatures and forms
- Compact file sizes with good compression
- Industry standard for official documents
PDF limitations
- Difficult to edit without specialized software
- Not ideal for responsive or reflowable content
- Can be large with embedded fonts and images
- Accessibility can be poor if not properly tagged
JPG advantages
- Very small file sizes for photographs
- Universally supported everywhere
- Adjustable compression quality
- Ideal for web and email sharing
JPG limitations
- Lossy compression — quality degrades with each save
- No transparency support
- Not suitable for text or sharp-edge graphics
- Artifacts visible at high compression
Which should you use?
PDF (document) and JPG (image) serve fundamentally different purposes but are often compared when converting between media types.
Best uses for PDF
Business documents and contracts
Resumes and cover letters
E-books and publications
Government and legal forms
Best uses for JPG
Photography and photo sharing
Website hero images and backgrounds
Email attachments
Social media uploads