In the PDF document model, the validation is performed per signature.
A signed document is considered valid when it has not been changed after the signing and all of its certificates have a valid trusted root certificate.
PDF and Image Export Formats share the same high-level layout engine.
Therefore all rules and design considerations that apply for the Image Rendering Extension apply for PDF as well.
For more information see: PDF Device Information Settings. The passwords are defined with the rendering extension device info.
The PDF rendering extension allows password protection with document content encryption. For more information see: PDF Device Information Settings.
If there are Unicode Glyphs missing on the server, you may see characters replaced with a question mark and if there is a font missing on the client, you may see characters replaced with boxes.
When designing a report that would be exported to PDF, you should make sure that the font you use in the report supports the characters that would be displayed.
The PDF rendering extension supports Document Map interactive feature which is rendered as PDF Bookmarks.
You can use the Bookmarks by opening the Bookmarks pane in Acrobat Reader to navigate inside the report.