Halftones: are used for continuous tone images such as photographs and illustrations that are not just black and white.
If you want to incorporate text (always avoid using Photoshop for text) or if you want to turn your image into a vector for further scaling or editing, the next stage is to import it into Adobe Illustrator - see Text below.
If you don't have Photoshop or a scanner, we can get your image scanned and prepped on a super high resolution Heidelberg drum scanner. If your file is just an image and you only have Photoshop you can send it as either a tiff with no image compression or a pdf. Next, turn your image into a bitmap by selecting Image>Mode>Greyscale, then Image>Mode>Bitmap with a method of 50% threshold and an output resolution of at least 1200dpi. Import the file into Photoshop and adjust the levels to get the whitest white and blackest black (100%) and clean up unwanted bits with the eraser tool. Scanned artwork is a raster image (a matrix of dots) initially and is best edited in Adobe Photoshop where bitmapping reduces the image to two colours, simplifying the colour information and reducing the file size. Scan your image at a minimum 600 dots per inch (dpi) - 1200dpi is best if you want to preserve as much detail as possible. Line Art: letterpress is a binary system - on/off, black/white so it's ideal for line art - black ink on white paper. If you need to do something more complicated with your scan or want to incorporate text, we have a fast and friendly designer available at reasonable rates.
If that's not possible we can get your work scanned on a Heidelberg Drum Scanner. Illustrator files, tiffs and EPS files are also acceptable.įile Prep Service: If you can scan an image at a high resolution then that may well be enough for us to produce a plate. The preferred format for your digital file is full-size, right-reading, press-ready, colour-separated PDFs with outlined fonts and embedded images. Prepared Files: you supply the digital file as per the instructions below. If you're not comfortable with preparing a file, we can help with the process. If you're outputting a full-color image, first select the ink color from the pop-up menu and then specify the screen Frequency (between 1 and 999.999), unit of measurement, and screen Angle (between -180 and +180 degrees) according to your service bureau's settings.If you're not used to scanning or preparing digital files with Adobe Photoshop and Illustrator, don't panic you can still get your plates made.Then, enter a screen Angle (between -180 and +180 degrees) according to your service bureau's settings. If you're outputting a grayscale image, use a screen Frequency (between 1 and 999.999) and specify the unit of measurement.Choose Output and click Screen to reveal the Halftone Screen dialog box. TRY IT To accurately adjust the halftone screen options of a file, choose File I Print With Preview and select Show More Options at the bottom of the Print With Preview dialog box. If your service bureau doesn't tell you to change them, you can leave the option Use Printer's Screens selected in the Halftone Screens dialog box. Be sure to contact your service bureau for their accurate halftone screen settings before using this technique to change them.
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