This doesn’t mean you need to hunt down your legacy Photoshop EPS files and resave them as PSD (unless you’re terribly bored). Pixel for pixel, a Photoshop native PSD is a smaller file than an equivalent EPS and offers support for clipping paths as well as duotone definitions.
Repeatedly opening, modifying, and resaving a JPEG can result in compromised quality if aggressive compression is used.Īs applications and RIPs have progressed, you’re no longer required to save such images as Photoshop EPS. NOTE: When you receive a JPEG image, it’s a good idea to immediately resave it as a PSD or TIFF to avoid further erosion to image content. If you’re using InDesign and Illustrator, that’s no longer necessary. The historic reasons for saving an image as a Photoshop EPS were to preserve the special function of a PostScript-based vector clipping path used to silhouette an image or to preserve an image set up to image as a duotone. EPS is, as the name implies, PostScript in a bag (see the sidebar, “EPS: Raster or Vector?”). It’s a container for artwork, and it can transport vector art, raster images, or a combination of raster and vector content. Some equate the acronym EPS (Encapsulated PostScript) with vector artwork, but the encapsulated part of the format’s name gives a hint about the flexibility of the format. The TIFF image format supports multiple layers as well as RGB and CMYK color spaces, and even allows an image to contain spot-color channels (although some applications, such as Word, do not support such nontraditional contents in a TIFF). It’s happy being imported into Illustrator, InDesign, Microsoft Word, and even some text editors-almost any application that accepts images. If you need to blindly send an image out into the world, TIFF (tagged image file format) is one of the most widely supported image file formats. So, there’s not much reason to use other formats unless you’re handing off your images to users of other applications, such as Microsoft PowerPoint or Word. However, native Photoshop files (PSD) and Photoshop PDF files are much more flexible, and both formats are supported by InDesign and Illustrator. In the olden days, the most commonly used image formats were TIFF and EPS. The application may be willing to let you place a wide variety of file formats, but that doesn’t necessarily serve as an endorsement of file format wonderfulness. Often, you will be placing images into InDesign or Illustrator, so you’re limited to the formats supported by those applications. How you should save your raster images is governed largely by how you intend to use them. * * * Appropriate Image Formats for Print Used with permission of Pearson Education, Inc. Excerpted from Real World Print Production with Adobe Creative Cloud by Claudia McCue.Ĭopyright © 2014.
0 kommentar(er)
