@qchenTPPXV
The YELLOW highlighted part is not created in AutoCAD. It was created in Adobe Acrobat (or similar PDF program). You may need to manually re-create those markups that were performed in Acrobat.
Your last post is strange because you never mentioned yellow markups in your opening post, your only concern was the 'clearness' of the green sanitary sewer line.
When using PDFIMPORT command, you can preserve the Acad layers, you cannot capture Acrobat markups unless your are willing to REPRINT the marked up PDF using the File=>Print function while inside the Acrobat program.
Depending on the LAYERS you want to display (or turn Off), you can vary the plot output.
All PDF 'Layers' are turned ON.
Chicagolooper
