If you reference large file size JPGs, PNGs, TIFFs, or other PDFs, the entire file size of those images will be included in the resulting plotted vector PDF. PDFs generated from AutoCAD are always vector based rather than raster.
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If you can replicate the huge PDF size from that drawing containing only that hatch, you'll know that hatch's PAT file is causing the issue.Īfter isolating and identifying the problem hatch, try using a different hatch pattern with a similar appearance instead.Ĩ. You can confirm a problem PAT file by placing that hatch in an otherwise-blank drawing. Does your drawing include a hatch created with a corrupt PAT (.pat) file?Ī corrupt PAT file can increase PDF file size. Does your drawing include a hatch with an overly complex boundary?ħ. See our steps for eliminating gradients from your drawing.Ħ. Too many gradients can slow performance and make PDFs unusable. We recommend avoiding the use of gradients in AutoCAD. If so, the gradients may also be causing the problem. Does your drawing include lots of gradients? Do you have a lot of shrub symbols using a detailed symbol? Try switching them out for our default simple symbols to see how the PDF size is affected. Does the drawing use complex plant symbols?Īs with hatches, the more lines, the larger the file size. Switch these hatches to an actual solid pattern to reduce the file size.Ĥ. Important: You may have some solid-looking hatches that are actually extremely dense hatch patterns. Try increasing the scale of your hatches to reduce PDF size. For a line-based hatch, each line adds more vector information. For example, sand hatches use vector information for each dot. If so, these hatches may be increasing the file size.
Does the drawing include extremely dense hatches? Follow our steps to clean your drawing and all Xrefs.ģ. Eliminating excessively large file size in a colorized planĪ corrupt drawing file can result in an excessively large PDF size.Use the recommendations in the following articles to reduce your file size: If so, the colorization may be contributing to the large file size. These steps will improve your drawing's AutoCAD performance dramatically, giving a boost to your daily drafting speed. AutoCAD reads vectors in much the same way as PDFs do. The following troubleshooting steps will minimize the file sizes of PDFs you create when plotting, but they're also AutoCAD best practices for optimal drawing performance.
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Need to reduce the file size quickly, and don't have time to troubleshoot your drawing for what might be causing the large file size? We recommend using a free website called to reduce the size of PDF files. The steps below will help you troubleshoot your drawing to identify and eliminate these problematic objects. Your drawing likely includes a number of objects that use an excessive amount of vector information, which is causing the file size to balloon. The more vector information a PDF contains, the larger the file size. PDFs created from AutoCAD are a vector-based graphic file. You plotted from AutoCAD to PDF, and the file size is too large. See our Best PDF Practices webinar for some helpful tips on working with PDFs in CAD.