With GerbView's PDF to CAD. GerbView supports both RS-274D and RS-274X Gerber formats, and you can use it to convert your older Gerber files to the new RS-274X extended format. The new extended Gerber format contains embedded aperture information and using this format will minimize the risk for errors during the manufacturing of the PCB. GerbView is an advanced but easy to use application that enables you to view, print and convert Gerber, ODB++, Adobe PDF, Excellon, HPGL/2 and other formats.
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