For large banner printing, it require at least 72ppi at actual size on images.
For example, 10x10inch image on banner artwork, the ppi at least should be 720x720pixel when open with photoshop.
The higher resolution of image the better, but not exceed 150ppi at actual size.Image with 150ppi or higher resolution is a waste as printing machine can not print small ink drop than 72ppi.So the higher resolution image or artwork design will require more computer memrory and capacity to process it when printing.
Recommended Resolutions
- General Guidelines:
- 150 DPI: This is often considered the ideal resolution for most large banners, ensuring sharp graphics and text when viewed up close, such as at trade shows or indoor displays.
- 100 DPI: For banners that will be viewed from a distance, such as outdoor signage or billboards, a lower resolution of around 100 DPI may suffice without sacrificing quality.
- Specific Cases:
- Close Viewing (e.g., indoor displays): Use 150-200 DPI for optimal clarity. If the banner is particularly large but viewed closely, aim for 150 DPI.
- Long Distance Viewing (e.g., outdoor banners): Resolutions can drop to 75-100 DPI, as details are less noticeable from afar.
- Size Considerations:
- The actual pixel dimensions required depend on the final print size. For example:
- For a 10 ft x 10 ft banner at 150 DPI, the image should be approximately 120 inches x 120 inches, which translates to about 18,000 x 18,000 pixels.
- If you submit a smaller image (e.g., 5 ft x 5 ft at 300 DPI), it will need to be resized appropriately to maintain clarity when enlarged.
Summary Table
| Banner Size (ft) | Recommended DPI | Pixel Dimensions (approx.) |
|---|---|---|
| 5 x 5 | 300 | 18,000 x 18,000 |
| 10 x 10 | 150 | 18,000 x 18,000 |
| Outdoor (varied) | 75-100 | Varies based on size |
Final Notes
- It’s crucial to avoid compressing files before submission; using formats like TIFF or PNG is preferable over JPEG for maintaining quality.
- Always consider the viewing distance when determining final resolution; closer viewing requires higher DPI while distant viewing allows for lower DPI settings.
By adhering to these guidelines, you can ensure that your large banners are printed with clarity and visual impact.