Raster Checks

A Raster profile checks standalone image uploads (JPEG, PNG, TIFF, WebP) — not images embedded inside a PDF, which are covered by the PDF Images section. Raster checks focus on whether the image is big enough, the right shape, and in a print-ready color mode. Many can auto-fix using AI and image transforms. Each check lists its action, settings, and the messages the customer sees; see the profile overview for how actions work.

Effective Resolution

The minimum resolution at the target print size, with optional AI upscaling to meet it. Effective DPI = pixel size ÷ target print size.

Field	Detail
Action	Reject (can auto-fix)
Settings	Minimum (dpi, default 300), Print width (mm), Print height (mm)
Issue	Your image won’t be sharp at the required print size. It works out to `{actual.effective_dpi}` DPI, but we need at least `{target.min_dpi}` DPI.
Fix	Upload a higher-resolution image so it reaches at least `{target.min_dpi}` DPI at print size.
Auto-fix	We’ll AI-enhance your image to the required resolution automatically before printing.

Minimum Pixel Size

The smallest acceptable dimensions in pixels. Auto-fix uses AI to upscale smaller images.

Field	Detail
Action	Auto-fix
Settings	Min width (px), Min height (px)
Issue	Your image is smaller than required. You uploaded `{actual.width}` × `{actual.height}` pixels, but we need at least `{target.min_width}` × `{target.min_height}` pixels.
Fix	Upload a higher-resolution image, at least `{target.min_width}` × `{target.min_height}` pixels.
Auto-fix	We’ll enhance your image to the required size automatically before printing.

Maximum Pixel Size

Flag images larger than needed. Auto-fix reduces oversized dimensions.

Field	Detail
Action	Warn (can auto-fix)
Settings	Max width (px), Max height (px)
Issue	Your image is larger than needed (`{actual.width}` × `{actual.height}` pixels), which may slow processing without improving print quality.
Fix	Resize your image down and re-upload.
Auto-fix	We’ll resize your image down automatically before printing.

Color Mode

Which color modes are accepted (e.g. CMYK, Grayscale, RGB).

Field	Detail
Action	Auto-fix
Settings	Allowed (CMYK / Grayscale / RGB / Lab / Indexed)
Issue	Your image is in `{actual.colorspace}` color mode, which isn’t suitable for this product — we require `{target.allowed}`.
Fix	Convert your image to `{target.allowed}` color mode and re-upload.
Auto-fix	We’ll convert your image to a print-ready color mode automatically before printing.

Bit Depth

The minimum color bit depth required to avoid banding.

Field	Detail
Action	Auto-fix
Settings	Minimum (1 / 4 / 8 / 16 bit, default 8)
Issue	Your image has low color depth, which can cause banding. Use `{target.min}`-bit or higher.
Fix	Re-save your image at `{target.min}`-bit or higher and re-upload.
Auto-fix	We’ll increase the color depth automatically before printing.

Transparency

Allow a transparent background, or flatten it to a solid color.

Field	Detail
Action	Auto-fix
Settings	Allow transparency (toggle)
Issue	Your image has a transparent background.
Fix	Flatten the transparent background and re-upload.
Auto-fix	We’ll flatten the transparency automatically before printing.

Background Removal

Automatically remove the background from the uploaded image.

Field	Detail
Action	Auto-fix
Settings	None
Issue	This product requires an image without a background, but your image appears to have one.
Fix	Remove the background from your image and re-upload.
Auto-fix	We’ll attempt to remove the background automatically before printing.

Maximum File Size

The largest file customers may upload.

Field	Detail
Action	Reject
Settings	Max size (MB, default 50)
Issue	Your image file is too large. The limit for this product is `{target.max_mb}` MB.
Fix	Reduce the file size and try uploading again.

ICC Profile Required

Require an embedded color profile to keep colors consistent on press.

Field	Detail
Action	Auto-fix
Settings	Expected profile (any ICC profile, or a specific one)
Issue	Your image doesn’t include the required `{target.expected_profile_name}` color profile, so colors may shift when printed.
Fix	Embed the correct color profile when saving your image and re-upload.
Auto-fix	We’ll embed the expected color profile automatically before printing.

Aspect Ratio

Restrict image proportions. Auto-fix pads or crops the image to the required ratio.

Field	Detail
Action	Auto-fix
Settings	Ratio, Tolerance
Issue	Your image isn’t the right aspect ratio (`{target.ratio}`) for this product.
Fix	Resize your image to `{target.ratio}` and re-upload.
Auto-fix	We’ll resize your image to the correct shape automatically before printing.

Total Ink Coverage

Limit total ink coverage (TAC) to prevent print defects.

Field	Detail
Action	Off (can auto-fix)
Settings	Max TAC (%, default 300), Convert to profile (ICC)
Issue	Your image has too much ink in some areas (`{actual.max_percent}`%), which can cause print defects. The limit is `{target.max_percent}`%.
Fix	Reduce the total ink coverage and re-export.
Auto-fix	We’ll reduce the ink coverage automatically before printing.

Get started

Install Filecheck

Core concepts

Admin guide

Specifications

Resources

Effective Resolution

Minimum Pixel Size

Maximum Pixel Size

Color Mode

Bit Depth

Transparency

Background Removal

Maximum File Size

ICC Profile Required

Aspect Ratio

Total Ink Coverage

​Effective Resolution

​Minimum Pixel Size

​Maximum Pixel Size

​Color Mode

​Bit Depth

​Transparency

​Background Removal

​Maximum File Size

​ICC Profile Required

​Aspect Ratio

​Total Ink Coverage

Effective Resolution

Minimum Pixel Size

Maximum Pixel Size

Color Mode

Bit Depth

Transparency

Background Removal

Maximum File Size

ICC Profile Required

Aspect Ratio

Total Ink Coverage