The Encapsulated PostScript file format stores images and page layouts. EPS files can contain both bitmaps and vectors, but only the vector images can be resized and modified without a loss of quality. The high quality and small size of the EPS file makes it ideal for sharing logos and other images related to your business that have to retain their quality when enlarged. To modify an EPS vector file, you need a vector-editing program. Windows does not include a native vector-editing program, but there are trial versions available for free online. Launch Adobe Illustrator by double-clicking the icon on your desktop or selecting it from the Start menu. If you do not have Illustrator installed on your computer, download a trial version (link in Resources). Click the 'Selection' tool on the toolbar, then click on the vector image. This highlights the anchor points and paths of the image. Use the Pen tool, bounding box and color palette to modify the size, shape and color of the image to your liking. Click 'File' and 'Save' to commit the changes to the original file, or 'File' and 'Save As' to store your changes in a new file. Launch CorelDRAW by double-clicking the icon on your desktop or selecting it from the Start menu. If you do not have CorelDRAW installed on your computer, download a trial version (link in Resources). Use the tools on the left side of the screen to make modifications, like changing the size, shape and color of the image. Click 'File' and 'Save' to commit the changes to the original file, or 'File' and 'Save As' to store your changes in a new file. Download Ghostscript (link in Resources). Double-click the downloaded file to begin the installation process. Select 'Ghostscript' as the name of the installation folder. Click 'Start' and right-click 'Computer.' Click 'Properties' from the context menu that appears, then click 'Advanced system settings.' Click 'Path' to highlight it, then click 'Edit...' to modify the value. Enter the following into the text box next to 'Variable Value': c:Ghostscriptlib , c:Ghostscriptbin Click 'OK' to close the edit window, then click 'OK' again to close the Environment Variables window. Click 'OK' to close the System Properties window, then launch Inkscape. If you do not have Inkscape installed on you computer, a free version is available online (link in Resources). Click 'File' from the menu bar and 'Import' from the list of options. Select the EPS vector file you want to modify and click 'Open.' Right-click on the image and click 'Ungroup' from the options to separate the different objects in the image. Use the tools in the toolbox window to modify the image to your liking. Click 'File' and 'Save' to commit the changes to the original file, or click 'File' and 'Save As' to save the modified image as a new EPS file. Virtually growing up in a computer repair shop, Naomi Bolton has held a passion for as long as she can remember. After earning a diploma through a four year course in graphic design from Cibap College, Bolton launched her own photography business. Her work has been featured on Blinklist, Gameramble and many others. Source.