![]() If you do want to set this physical DPI hint, Inkscape 1.0 exposes it in the "pHYs dpi" field in the"Advanced" section of the dialog. Equally you could create an image that's 5000px wide to print at 1", in which case it would be scaled down and much of the detail lost as pixels are effectively thrown away to make it fit. It would be scaled up appropriately, resulting in a blocky output as each pixel has to be quite large. It has no effect on the actual number of pixels in the image, though, so it's perfectly valid to create an image that's 5px wide, but which is printed at 10" wide. For example this should allow you to import the image into a desktop publishing program and have it appear at the correct size on the page. It is also possible to provide a "hint" in the header of the PNG file to tell other software what physical size you would like the image to be. ![]() Basically you can usually ignore the DPI field, and just set the size of the output image in pixels in the "Image size" section. The "dpi" value that Inkscape shows by default is therefore somewhat arbitrary, based on an accepted semi-standard for the pixel density of a computer monitor (which is increasingly incorrect as more people move towards high DPI screens). The physical size of each pixel will depend on the device that displays or prints it. Effectively you've switched from "Selection" to "Custom", except that the Inkscape UI unfortunately doesn't update to show that.Ī PNG, being a raster image, is only really measured in pixels. If you change the Width and Height in there, you're actually changing the size of the area on the page that you've selected for export (notice that the x1 and y1 values change as well). This means that the file size of JPGs will be smaller, but the image quality may not be as good. When you first open the dialog, with the object selected, the top section ("Export area") is populated with the values that correspond to the selected item. JPG files use more compression than PNG files. DPI is relatively meaningless in this situation. Just change the ones in the "Image Size" section. Tl dr - Don't mess with the Width and Height fields in the "Export area" section. ![]() ![]() Inkscape v0.47 has rendering problems when two objects touch each other. You're confusing the export area dimensions with the image size. Exporting a PNG file is done through the Export Bitmap dialog (File icon. ![]()
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