![]() ![]() pdf for printing/viewing is to rasterize the. *In Adobe Reader Pro, the only workaround I can suggest to keep and deliver a smaller. ai exports are not available in ArcGIS Pro. pdf file in Illustrator is cumbersome for simplification operation. Also, the Illustrator option leads to another problem, importing and manipulating. But I would prefer to apply this vector simplification when exporting. However, what is the effect of only 1% simplification in terms of actual vector shifts (and actual shift in meters)? Is it acceptable? For printed maps, you can hardly notice the 1% simplification and it removes about 80% of the vertex. pdf reduces the file size down to 13Mb! Then, simplifying line vectors by only 1% and the newly exported. *In Adobe Illustrator, I imported the 25mb. For my test map, ArcMap output 2Mb vs ArcGIS Pro 25Mb!įor the time being, I experimented 2 workarounds: In the files attached, when zoomed in Acrodat Reader at 500%, you can clearly see the ArcMap snapping effect. Dpi in ArcGIS Pro only matters for raster layers in the. pdf output and not the vectors "snapped to dpi coordinate grid" set with the dpi parameter. I confirm Marco's comment as I had to investigate this issue last week. For Pro, using a different display pipeline, this probably requires another solution. In ArcMap, this functionality was a direct consequence of the used Windows GDI display pipeline. A second aspect is that it would be good if ESRI allowed some form of target vector output resolution for Pro, automatically mildly generalizing or simplifying the vector output if the underlying datasets are of a higher resolution than is realistically necessary for high quality output. To get better quality output in ArcGIS Pro with smaller output PDF file sizes, without the jagged over-detailed linework, you should generalize the datasets using e.g. Clearly, the data you are using is far more detailed than is needed for a country overview. Also notice the increasing file size because of this, going from a mere 0.4MB at 100dpi, up to 7.6MB at 3600dpi. Notice that with increasing resolution, the images start to look more and more like the Pro export: lines are more detailed, but start to look jagged due to an abundance of detail in the original datasets. ![]() Now look at the subsequent images from ArcMap at 600, 12 dpi output. Since Pro will output nearly all coordinates, the final file size is big as well (see the first screenshot above), but this is direct consequence of using highly detailed apparently "local" data displayed at "country" scale in the layout. Now look at the second ArcGIS Pro image, also 100dpi output: notice the detailed - but jagged - linework? This is caused because your data is at very high true coordinate resolution compared to the scale at which you are trying to display it. This is the way how ArcMap handles this, and is a direct consequence of the different display pipeline in ArcMap versus Pro. Even though it looks rasterized, it is still vector data, but the coordinates of the vectors have been snapped to 100dpi coordinate grid. Notice how, zoomed in at 800% in Adobe Reader, the ArcMap output looks "blocky", almost rasterized. First look at the top two images, which are 100dpi output from ArcMap and Pro respectively. Look at the images below, which are 800% zoomed in screenshots from the export as seen in Adobe Reader. In essence, although this is not entirely true, the Resolution (DPI) as displayed in the Pro export dialog, is meaningless if you only export ***100% vector*** PDFs!!! Note: with raster or image layers in your map document, DPI is meaningful and will strongly impact output file size and quality.ĪrcMap on the other hand, due to using a different display pipeline, has a dependency between the dpi setting and the vector output quality: the lower the dpi, the coarser the vector output in the output PDF! This means that linework of polygons and polylines will remain smooth - at least if the dataset is suitable for the scale at which it is being used - and things like text halos will be of high quality in the PDF output, even when zoomed in at e.g. Pro will always (attempt to) generate high quality vector output. There is a fundamental difference in how Pro and ArcMap handle the vector PDF export: in Pro, almost all the coordinate information of the original polygons and lines, will be retained in the PDF output, even if you set a low dpi output resolution. Now look at the last two files from Pro, and notice that although there is a size increase, it is relatively small. Notice that with increasing output dpi, the file size also increases. The first 4 listed files without "_Pro_" in the filename, are the ArcMap export. I now had a look at the map packages, and exported them to 100,600,12 dpi PDFs in ArcMap, and 1 dpi in Pro. Thanks for sharing the map packages (note to other readers of this thread: you must be logged in to see and download those!). ![]()
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