The advantage of compressing, of course, is that the file is smaller. With TIF format, and no other, Prism lets you choose to compress the file. By checking the option to reduce the graph to a width of 2 inches, you will create a file one-ninth as large (one-third the width times one-third the height). Let’s say your graph is 6 inches wide, but you will publish it with a width of 2 inches. Avoid this problem by specifying the publication size. If you ask for a graph at 1200 dpi at the actual size in Prism, you will end up with either a huge file or an out-of-memory error message. Typically, graphs and layouts in Prism projects are much larger than publication size. Prism Mac always uses millions of colors. If you choose RGB, Prism Windows lets you choose between 256 colors (smaller files) or millions of colors (larger file, but more accurate color rendition). Prism Windows also lets you choose Monochrome files, which are pure black and white with no grays. If you are submitting to a journal, follow their instructions. Journals typically ask for a file at 1200 dots per inch (dpi), the highest resolution that Prism offers.Ĭhoose between two ways to express colors: RGB (designed for computer monitors or projectors) or CMYK (designed for printing). Computer printers generally print at 300-600 dpi, and publications are generally printed at 1200 dpi. Computer screens display images at about 100 dpi. The resolution is expressed as dots per inch (dpi). You need to choose resolution, color model, and size.

TIFF files tend to be trouble-free when submitted to journals. This is a bitmap format, which means that your graph or layout is turned into a collection of dots. The two are exactly the same, and you can rename from one to the other.) (Prism uses the extension TIF but it is identical to TIFF used by some other programs. Prism Mac and Windows can encode transparent colors in PDF export.Or you can ask Prism to create a separate PDF file for each sheet. When exporting several graphs or layouts, you can choose to export all of them to one PDF file.You don't have to have Adobe Acrobat to export PDF files.

If your graphs are in color, you will need to choose between RBG and CMYK color model.

In contrast, PDF is the preferred format for transferring images between Mac programs. Unfortunately, few Windows programs import pdf images, and few journals accept them. Prism's PDF files encode vectors and fonts (not bitmaps), so the resulting file can be stretched to any size with no loss of quality. Choose the export format in the Export dialog, and check an option at the bottom of that dialog to set the default for future exports.

Set the default for how Prism copies graphs and layouts to the clipboard in the File & Printer tab of the Preferences dialog. Setting the default export format and the default for copying to clipboard

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