Notice that the resolution of the downloaded image depends on the resolution of the images uploaded by the customers. It is not technically possible to increase the DPI of an image. For instance, if the customer has uploaded a 72DPI image, it is not possible to generate a 200DPI image. The maximum resolution will be always the maximum resolution of the image uploaded by the customer. 

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TIP

If you need to create a template with any exact size in pixels, you can do it in this way:

Imagine that you need a file (jpg or PNG) with a size of 1500x1600px to print your product. Notice that the maximum size of the layout in the tool is 800x700px

 

Reduce the size of the cropping area to, for instance, 4 times smaller to your desired size in pixels; I mean, 375x400px

 

Then, in the backend, when you download the image for printing, scale it up to 4X and you will get the image just with the desired size you need