PPI: Pixels Per Inch in Image Files
PPI (pixels per inch) describes how many pixels from an image file are used to fill one inch of physical space when printed or placed in layout.
PPI connects pixel dimensions to real-world size. A 3000 x 2000 px image can be printed sharply at smaller sizes and becomes less sharp when stretched larger. Changing PPI without resampling only changes the implied print size, not the real pixel detail.
Example
A 3000 px wide image prints at 10 inches wide at 300 PPI. If you print it at 20 inches wide, it becomes 150 PPI at final size.
Frequently Asked Questions
Common target is 300 PPI at final size for high-quality print. Large posters can be acceptable at lower PPI depending on viewing distance.
Not unless you resample and add pixels, which is interpolation. You cannot recover detail that was never captured.
For web, PPI is mostly irrelevant. What matters is pixel dimensions, compression, and display density on devices.
Because some formats store it as metadata. Browsers typically ignore it, but print workflows use it to infer size.
In layout apps you can see effective resolution based on placed size. If you scale an image up, effective PPI goes down.
Visual communication that resonates. High-quality Graphic Design is more than just aesthetics; it’s about clarity and impact.By leveraging technical Alignmentand the strategic use of White Space,we ensure your message—from digital assets to Print-Readyfiles—is delivered with professional precision.