PDFs created from Visio files preserve page sizes and support layers, searchable text, custom properties, links, bookmarks, and comments, depending on your settings in the conversion settings. (Choose Adobe PDF > Change Conversion Settings to review these, if needed.)
When you convert your Visio file to a PDF, you can preserve all or just some layers, or you can flatten all layers. If you flatten layers, the PDF will look like the original drawing, but won’t contain any layer information. All shapes in the Visio drawing are converted, regardless of their protection or behavior, and shape custom properties can be converted to PDF object data.
When flattened, only shapes that belong to both visible and printable layers appear in the converted PDF.
Convert Visio files
Select Visio layers to convertYou can convert a Visio drawing that contains layers to a PDF and retain some or all of the layers in the resulting PDF, or you can flatten the layers. You can also organize the Visio layers in layer sets, which are folders in the Acrobat Layers panel.