Here at Simon’s Stamps, we regularly receive emails about file requirements for custom art. It’s pretty simple: our laser engraver needs a file to be a 500 DPI monochrome bitmap. Below are the steps to get just that.
Before you get started, make sure your file has been cropped to eliminate any extra white space around the edges. You can crop right up to your art. This will ensure you get the correct size for your finished stamp.
First, in Photoshop or your image editor, click the “Image” menu option and scroll down to “Image Size…”
A new pop-up menu will appear. Make sure the “Resolution” option is set to 500. And also make sure your image dimensions are what you’d like your stamp size to be. Click “OK.”
Next, also under the “Image” menu option, click on “Mode” and choose “Grayscale.”
Then, again under the “Image” menu option, click on “Bitmap…”
A new pop-up menu will appear. Make sure “Output” is set to 500 and the Method drop down option is set to “50% Threshold.” Click “OK.”
An that’s it! When you save the image, make sure to choose a BMP or TIFF file.