PNG files are one of the most commonly used image formats. They’re excellent in some situations and less ideal in others - especially when preparing artwork for print. Here’s what you need to know.
Why We Prefer PDFs
At FM, we recommend using PDF files whenever possible. PDFs preserve vector data, color profiles, transparency, and resolution more reliably than most image formats. However, if you need to work with PNGs, the information below will help you use them appropriately.
What are the benefits of using a PNG file?
PNGs are mostly appreciated for supporting transparent backgrounds. This makes them great for setting up quick proofs or layering in image files. They are also easy to save and send due to their widespread use and support across many sites and platforms.
What Is a PNG?
A PNG (Portable Network Graphics) is a widely used image format ideal for digital use. It supports transparent backgrounds and lossless compression, which makes it great for images with sharp edges, text, or icons. PNGs are extremely common across websites, apps, and digital design - second only to formats like JPG and PDF.
Benefits of Using PNG Files
Transparency Support
PNGs allow transparent backgrounds, making them useful for quick proofs, mockups, and layered designs.
Widespread Compatibility
Most design programs, browsers, and platforms open PNGs without issue, making them simple to save, view, and share.
Limitations of PNG Files
1. Color Mode Restrictions
PNG files only support RGB color mode. They do not support CMYK.
- If you save CMYK artwork as a PNG, it will automatically convert to RGB.
- This conversion often causes noticeable color shifts, especially in printed materials.
- RGB also allows very bright or neon-like colors that cannot be reproduced with CMYK inks, which may lead to disappointment during printing.
Bottom line: PNGs can work for simple spot-color designs (1–3 colors), but they are not the best choice for full-color print work.
2. Resolution Concerns
Because PNGs are primarily intended for digital use, many programs export them at 72 DPI by default.
- 72 DPI is fine for screens but usually looks pixelated or soft when printed.
- Print-ready artwork should be saved at 300 DPI.
To get a high-quality PNG for print, create your file at 300 DPI, then use Save As or Export As (not quick export) and select the highest-quality PNG settings.
If your PNG still appears too large, pixelated, or low-quality, a PDF is likely the better option.
Final Thoughts
PNG files are everywhere, which can make it confusing to determine when they’re suitable for print. We hope this guide clarifies how and when to use PNGs, and when to choose a PDF instead.
