PrintEx Documentation

Prepare UV printer artwork by placing an imported image inside a known blank template, then exporting a correctly sized raster file at print resolution.

Quick Start

Open PrintEx.
Click Import Image or drag an image into the window.
Choose the template that matches the blank you are printing.
Move and resize the image inside the template preview.
Choose the output resolution.
Enable Registration marks if you need printer alignment marks.
Click Export.
Drop the prepared image into eufyMake Studio.

For store listing graphics, choose one of the Store Sample templates instead of a print blank template, then import or drop in a product photo.

Main Window

The toolbar contains the common workflow controls.

Control	What it does
`Import Image`	Opens a supported raster image.
`Grid`	Switches between inches and millimeters.
`Template`	Selects the blank shape and size.
`Output`	Selects the export DPI.
`Registration marks`	Adds alignment marks outside the template border.
Fill rectangle button	Fits the image to the template.
Center-in-rectangle button	Centers the image in the template.
Rotate buttons	Turn the image 90 degrees left or right.
Store Sample object controls	Show the detected object size and shape, then fit or center the detected object.
`Export`	Writes the final image file.
Camera button	Saves a PNG snapshot of the current PrintEx window.

The window title includes the app version when version.json is available in the app bundle.

Supported Image Files

PrintEx can import common raster formats:

.png, .jpg, .jpeg, .bmp, .gif, .webp, .tif, .tiff

Export Resolution

Standard - 600 DPI for normal output.
Enhanced - 1200 DPI when the printer, ink, and blank benefit from extra detail.

Registration Marks

When enabled, PrintEx adds outer registration marks 0.5 mm outside the template border. These marks are intended for positioning and alignment and are outside the printable blank area.

Store Graphics

The Store Sample Square and Store Sample Landscape templates create product photos for PayHip or another online store. PayHip recommends a cover image width of at least 1000 pixels, so the square store template exports at 1000 x 1000 px in Standard mode and the landscape template exports at 1600 x 1000 px in Standard mode.

When a Store Sample template is selected, PrintEx detects the product in the imported photo and shows it with an orange rectangle. The left tool strip shows the detected object size at the selected output resolution and the detected shape name: circle, square, hexagon, or polygon.

Select Store Sample Square - 1000 x 1000 px or Store Sample Landscape - 1600 x 1000 px.
Import or drop in the product photo.
Wait for the loading indicator in the left tool strip to finish.
Check the orange detection rectangle. Drag its handles if the detected product edge needs correction.
Use object Fit to resize the detected product to a consistent store-sample size.
Use object Center to center the detected product on the template.
Export the finished store graphic.

The regular image controls still work in Store Sample templates. Use the fill-rectangle button to fill the whole template with the image, the center-in-rectangle button to center the whole image, and the rotate buttons to turn the image 90 degrees.

Print Jigs

David's eufyMake print jigs on Printables include useful 3D printable jigs for positioning blanks on the eufyMake UV printer.

Templates

Each template is described by a JSON file and usually has a matching PNG thumbnail or mask. Dimensions can be defined in inches or millimeters.

Coin - 40 mm

Shape	Ellipse
Size	40.0 x 40.0 mm
Printable inset	1.5 mm
Amazon blank	Blank Challenge Coin

Use this template for small round 40 mm coin-style blanks. The printable inset keeps artwork away from the outer edge.

Hexagon Coaster

Shape	Hexagon
Size	111.0 x 98.0 mm
Printable inset	7.0 mm
Amazon blank	Hexagonal Black Stone Coaster

Use this template for hexagon coaster blanks. The inset leaves a substantial margin from the cut edge.

License Plate - 302 x 152 mm

Shape	Rounded rectangle
Size	302.0 x 152.0 mm
Corner radius	7.0 mm
Slots	Four mounting slots
Amazon blank	Black License Plate Blank

Use this template for standard license plate blanks with four mounting slots. Keep important artwork away from the slot areas.

Round Coaster - 4 in

Shape	Ellipse
Size	4.0 x 4.0 in
Amazon blank	Blank Round 4 in Ceramic Coaster

Use this template for 4 inch round coaster blanks.

Square Coaster - 4 in

Shape	Rectangle
Size	4.0 x 4.0 in
Amazon blank	Blank Square 4 in Ceramic Coaster

Use this template for 4 inch square coaster blanks.

Store Sample Square - 1000 x 1000 px

Shape	Rectangle
Standard export size	1000 x 1000 px
Enhanced export size	2000 x 2000 px

Use this template for square product sample graphics on PayHip or another store.

Store Sample Landscape - 1600 x 1000 px

Store sample landscape template thumbnail

Shape	Rectangle
Standard export size	1600 x 1000 px
Enhanced export size	3200 x 2000 px

Use this template for landscape product sample graphics on PayHip or another store.

Template JSON Reference

Field	Purpose
`name`	Display name in the template selector.
`width_in`, `height_in`	Template dimensions in inches.
`width_mm`, `height_mm`	Template dimensions in millimeters.
`shape`	`ellipse`, `hexagon`, or `rect`.
`image`	Optional PNG image or mask filename.
`corner_radius_in`, `corner_radius_mm`	Rounded rectangle corner radius.
`printable_inset_in`, `printable_inset_mm`	Inset from the outer template edge.
`holes`	Circular cutouts or mounting holes.
`slots`	Rectangular or rounded mounting slots.

Slot by center point

{
  "x_mm": 67.0,
  "y_mm": 16.5,
  "width_mm": 30.0,
  "height_mm": 7.0
}

Slot by top-left edge offsets

{
  "left_mm": 52.0,
  "top_mm": 13.0,
  "width_mm": 30.0,
  "height_mm": 7.0
}

Troubleshooting

The image is the wrong size

Confirm the selected template matches the physical blank. Export size is based on the template dimensions and selected DPI.

The template thumbnail or mask is missing

Confirm the template JSON image field points to an existing PNG in templates/.

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