What This Article Covers
What print sharpening is and when to use it
How to access and adjust the sharpening slider in the Snappic app
Recommended sharpening values for different print scenarios
Why prints can sometimes look softer than digital previews
Before You Start
Print sharpening is available from Snappic app version 1.39 and later. Update your app before following these steps.
Your printer must be connected and your booth must be active to access the print settings screen.
How Print Sharpening Works
Digital screens are backlit and display images using millions of colours. Prints use physical ink and reflect light, which means they can appear slightly softer by comparison — especially on photo strips or in lower-light capture environments. This is a fundamental difference between digital and print output, not a compression issue.
Snappic does not compress your images for printing. The Print Sharpening slider applies an optional sharpening filter to your images before they are sent to the printer. Sharpening is disabled by default because the right amount varies depending on your printer, paper type, and image content. Applying too much sharpening can introduce artefacts and affect image quality negatively.
💡 Tip: Start with a sharpening value between 0.2 and 0.4. This range works well for most printers and content types. Increase gradually and test before your event.
How to Adjust Print Sharpening
⚠️ Important: Take a test print after adjusting the sharpening value. Do this before your event to confirm the output looks correct for your specific printer and paper.
Load your event in the Snappic app.
Connect your printer and tap Start Booth.
3. On the Adjust Camera Settings screen, tap the Accessories tab.
4. Under Printer, locate the Image Sharpening slider in the Print Processing section.
5. Drag the Image Sharpening slider to your desired value. The slider defaults to 0 (sharpening disabled).
6. Take a test print to evaluate the result before starting your event.
Image Sharpening Settings
Use the table below as a starting point. Test before your event to find the right value for your setup.
Scenario | Recommended Value
| Notes
|
Default (no sharpening)
| 0
| Use if your prints already look sharp.
|
Slightly soft prints
| 0.2 – 0.4
| Recommended starting range for most setups.
|
Noticeably fuzzy or blurry prints
| 0.4 – 0.7
| Test carefully. Higher values can introduce visible artefacts.
|
Maximum sharpening
| 1.0
| Not recommended for most use cases. May degrade image quality.
|
Troubleshooting
Why do my prints look softer than the digital preview on screen?
Digital screens are backlit and display far more colour range than a physical print can reproduce. Prints reflect light rather than emit it, which makes them appear less vibrant and sometimes softer by comparison. This is a physical difference between screen and print output. Start by adjusting the Image Sharpening slider to a value between 0.2 and 0.4 and take a test print.
Why does the Image Sharpening slider not appear on my Accessories tab?
The Image Sharpening slider is available from Snappic app version 1.39. If you do not see it, update the Snappic app to the latest version.
Why do my prints look over-sharpened or have a halo effect around edges?
The sharpening value is set too high for your printer and image content. Reduce the Image Sharpening value and take a new test print. Values above 0.7 can produce visible artifacts on some printers.
Why are my prints still blurry after increasing sharpening?
Sharpening improves the appearance of soft prints but cannot fix issues caused by other factors. Check the following:
Lighting — insufficient or uneven lighting at capture produces soft source images that sharpening cannot fully correct.
Print connection — a wired connection to the print server produces more consistent results than AirPrint or a wireless connection.
Camera focus — confirm the camera is focused correctly for your typical guest distance.
Does adjusting DPI in printer settings affect print quality?
No. DPI metadata in the image file does not affect print output quality. Print quality is determined by the source image resolution, your printer hardware, and your printer's own quality settings. Snappic sets the DPI metadata in image files to 300 for compatibility with printers that reference this value, but it does not change the actual pixel data in the image.
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