Digital projects don’t always translate perfectly into the print world. An entirely different color palette must be used and knowing which program is optimal for your project is also important. For example, digital projects should usually be done in RGB colors while commercial print projects should be done as CMYK.
The reason for this is the way that light affects color. However, if you are using a desktop printer, you can use RGB colors because most desktop printers internally convert RGB data into CMYK. You can go here to learn more about RGB vs. CMYK.
As a general tip, it is a good practice to run a test print with the colors that you intend to use, to ensure that the image on your screen is the same that is going to be produced by the printer.
Photoshop: Pros and Cons of Print
Photographs are the type of prints where Adobe Photoshop really shines. When preparing a photo for print, there really is no better option than a program specifically designed for this task. Photoshop makes it easy through filters and layer masks to adapt a photograph to suit any print project.
Using layers is a lot easier in Photoshop. These allow you to tweak pieces of your photo or design without destroying the original. You have a greater amount of control and can work with tiny selections of your image at a time. Layers also make it easy to make what-if scenarios when you make a change using a layer mask. This is because any layer you make can also be made invisible.
Creating multiple layouts is a challenge with Photoshop. Generally one work area is used and changing its size affects your entire project.
Photoshop’s pixel-based files do not resize very well, and image data can be lost or appear blocky if it is scaled to a size that is too small or too large.
Tips for Printing with Photoshop
Usually it is best to “flatten” the image before printing. This means that you should save a version of your image with all the layers merged together. To flatten an image, use Layer > Flatten and then save the image as a .jpg or .gif file.
Print time can be decreased, if needed, by saving the image at a lower resolution. When you save your image, you can use the drop-down menu to choose another file format, such as .jpg, which will allow you to save at lower quality if needed.
You can use View > Gamut Warning to discover any unprintable parts of your image. They will show up as patches of gray.
Illustrator: Pros and Cons of Print
Adobe Illustrator is especially good for images that are going to need to be resized before print, because this program specializes in vector drawings. A company logo that might need to appear on anything from a tiny business card to a large banner is a good example, because these vector images will always appear smooth and crisp when scaled to any size.
Type is also something that Illustrator excels at. Besides the fact that type should be vector-based so it can be scaled up and down at will, Illustrator has a lot of built-in functionality for type, allowing you to manipulate lettering in creative ways.
Manipulating images is a lot more difficult in Illustrator than in Photoshop. Because the image is handled in large units, editing tiny parts of it is a lot more frustrating.
There aren’t a lot of filters in Illustrator and it’s difficult to use illustrator to edit an existing image. The lack of layer functionality makes it difficult to manipulate one aspect of the image at a time.
Tips for Printing with Illustrator
Keep the vectors as simple as you can. Using a lower number of anchor points means that the fidelity of the image is more likely to endure a lot of resizing.
Use Object > Path > Simplify in order to lower the amount of total anchor points in the document, making it more efficient.
If your artwork is not designed to “bleed” or extend beyond the edges of the print, leave ¼” of white space between the graphic and the edge of the artboard. If you do wish for it to “bleed”, you can ensure this by extending the image ⅛” beyond the edge of the artboard.
While both Adobe Photoshop and Illustrator can be used for creating a print project, knowing which one is best for your particular project will ensure that you get the best look from your design. Remember also that in a lot of cases, it’s beneficial to use elements from both Photoshop and Illustrator and bring them together for your final prints. The possibilities are endless.