Line and gradient issues when exporting layout to PDF

[bdparrick]

Using: ArcPro 3.6.1

I'm currently having a two-fold problem when trying to export a layout to pdf (to then edit in Illustrator). The layout includes county boundary polygons, project boundary polygons, a point feature class symbolized as a heatmap, and the associated elements.

Immediately upon export with the heatmap layer and legend, I receive this error: Capability not supported in export format, some content is being rasterized. I assume this is because the sparse end of the heatmap ramp fades to 100% transparency, which was supposedly addressed with BUG-000163691 in 3.4. This is not the first time I’ve exported a heatmap of this particular dataset and previous versions are smooth, whereas this one shows breaks in the transparency and creates a bullseye effect.

Focusing on this issue allowed me to notice another: any and all of my lines/polygons are severely wonked. In the screenshot, the black lines are my project polygons and the grey background ones are my county polygons. I cannot stress enough how much they are not supposed to look like that. The project boundaries are based on the National Grid and are straight lines and yet the export messes them up. I even went in and generalized all the vertices to make it simpler, and it still did not matter.

Everything is in the same coordinate system. I’ve tried exporting to cloud storage and local storage. I’ve changed my hardware antialiasing settings and switched through rendering engines. I have cleared my local cache. I’ve tried rasterizing just the heatmap layer upon export. I recreated the layout in a new project. None of my layers are in groups with any transparencies. I’ve tried every variation on export and nothing works. Exporting this layout as an image is useless to me – I need to be able to open it in Illustrator. 

[BotchaJayasri]

• Isolate the Heatmap: In your Contents pane, right-click the heatmap layer, open its properties, and check Rasterize layer in exported file. This forces only the heatmap to pixelate while keeping your project lines as perfect vectors.
• Stop Layout Splitting: In the Export Layout pane under Vector Options, check Export raster content as a single tile. This stops ArcGIS Pro from chopping up your boundary lines into jagged raster blocks.
• Fix the Transparency: Edit your heatmap color ramp. Change the 100% transparent color stop to 1% opacity. This prevents the export engine from failing and creating that stepped "bullseye" effect.
• The Ultimate Illustrator Fix: If it still glitches, export twice. Export one PDF with only the lines (pure vector), and export a high-res PNG/TIFF with only the heatmap. Layer them back together in Illustrator.

[bdparrick]

• I have tried rasterizing the heatmap from inside the layer properties - I still receive an error and it has no effect on my lines
• I have exported the layout with only the heatmap layer on, with only my project boundaries, with only the county boundaries, and any variation in between. My lines still come through incredibly messed up.
• The 99% transparency on my last color stop changed very little, unfortunately.

[BotchaJayasri]

Thanks for the update! Since the lines stay distorted with the heatmap turned completely off, the issue is not the transparency.

Try these quick fixes to restore your line geometry:

• Turn Off Map Clipping: Right-click Map > Properties > Clipping > set to No Clipping. (Clipping masks often distort vector lines).
• Run Repair Geometry: Run the Repair Geometry geoprocessing tool on your boundary layers to fix hidden vertex corruption.
• Uncheck Vector Compression: In the Export pane, uncheck Compress vector graphics to stop the engine from downsampling straight lines.
• Test a New Layout: Insert a fresh, blank layout tab and map frame to rule out layout container corruption.