How to Set Resolution for Illustrator & Save As PDF

Illustrator is a graphic editing software produced by Adobe. Illustrator works with the vector graphic format. Such a format contains a mathematical description of an image rather than a collection of pixels as any traditional graphics. Advantages of the vector format include the small file size and scalability to any resolution without losing the graphic quality. When exporting a vector image to another format such as PDF (Portable Document Format), Illustrator allows you to explicitly set a desired resolution for your document.

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Click the "File" menu in Illustrator and choose the option "Document Setup."

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Select "Printing & Export" using the drop down box in the window "Document Setup."

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Enter the desired resolution in dpi (dots per inch) - 600, for example - in the box "Output Resolution." Then click "OK."

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Click the "File" menu again and select "Save As."

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Select the option "Adobe PDF" in the box "Save as Type."

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Type a desired name in the field "File name" and click the button "Save."