Top right: zoomed-in Vector image in BricsCAD workspace.īottom left: Screenshot of BricsCAD workspace. ![]() Top left: Vector image in BricscAD workspace. Vector images are more "specialist" and are better for technical drawings, images that need to be scaled, high-accuracy plans, logo design, exporting to machines such as CNC, etc. Raster images are more "typical" and are used primarily for graphical work: photography, print, website images, digital artwork, etc. In reality, the two file formats tend to serve different purposes. Vectors are scalable, and rasters are not - is the short answer. What is the difference between raster and vector? The best resolution for print generally is 300, although sometimes 150 is "acceptable.” That means any image will be around ¼ the size when printed. The best resolution for screen/digital images is typically 72 dpi. The resolution of a raster image is defined by dpi (dot per inch). Here, the BricsCAD logo has been scaled in raster form notice that the image quality is greatly reduced. This is precisely how a raster image works, but with much smaller squares. Think about old-school video game graphics. That's because it is essentially made from a set of colored squares. If you make a raster larger, it will become "pixelated" and lose quality. Vector file types:Ī raster image is a specific size. Here, the BricsCAD logo has been scaled in vector form notice that the image quality stays the same. You are simply telling the computer to draw a line between different points. If you draw a square of 1cm by 1cm and scale it by 100, you will have a box 100cm by 100cm that look precisely the same. ![]() That means you can change the size to as large or small as you want, and the photo will remain the same quality. The red square, as shown below, indicates that the drawing will be bigger than the printing paper and this might create problems for your exports.What is a vector image? What is a raster image, and what's the difference between a raster and a vector? Keep reading to find out!Ī vector image is scaleable. Every time you print, remember to change the paper size so as to cover your whole drawing.Be aware that you will lose all setting you have changed this far. In that case just reset your settings in AutoCAD to their defaults, as described in this tutorial. If you are suddenly encountering problems with printing, you might have unwillingly changed your settings.dwg and you will have all your sheets as layout tabs on a single file. Try exporting your drawing as a PDF instead of printing it as a PDF. Exporting does not create a single PDF file of the entire.Png works out better for plotting as it is a lossless compression method, unlike jpeg that loses data in the conversion. Import your imagery with Plex.Earth as.In any case, use Adobe Acrobat version 8 or higher.įinally, here are some tips that can be used for PDF exports as well as more general cases. ![]() In some cases, the full version of Adobe Acrobat may not print the images, but various freeware version might do. The first command sets the maximum percentage of available virtual memory that is allowed for plotting a raster image and the second one specifies a raster image threshold in megabytes when printing. Type "RASTERPERCENT" and "RASTERTHRESHOLD" in the command line of AutoCAD and set them to 90 and 100. (0 - Monochrome, 1 - Low graphics, 2 - High graphics and 3 - Automatically Select)Ĥ) Change the Settings for Plotting Raster Images Type "OLEQUALITY" in the command line of AutoCAD and set the plot quality for OLE (Object Linking and Embedding) to 0 or 1. Once you've published it, you can revert the "Show Clipping" option to "Yes".ģ) Assign the Plot Quality for OLE Objects In the properties window, on the bottom, set "Show Clipping" to "No". Therefore, try to resize your images to 2500 pixels or under in all cases.Ģ) Make Sure that you Have no Clipping Boundaries Keep in mind that images bigger than 2500 pixels may not show up in PDF's. This may make your images look worse, so stay as high as you can. Go to "Raster Image Quality" and set it to a lower number. From the Plotter Configuration Editor, choose "Custom Properties" and click on "Custom Properties" (down below the other custom properties). Select "DWG To PDF" and click on "Properties". This is a common issue in AutoCAD drawings with raster images and has been discussed extensively in Autodesk's forum.īelow, we have gathered the solutions that have proved to be the most effective for our users, in order to fix this problem.ġ) Change the Quality of your Raster Images ![]() When plotting an AutoCAD drawing that contains imagery (either imported with Plex.Earth or otherwise embedded into your file) to PDF, part of that imagery may not show up in the final output, although it appears correctly in the plot preview.
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