No. Native files can preserve useful structure, while PDFs may be easier to review or redact. Choose the format for the research task and retain what was actually supplied.
Do not assume it must create a new analytical record. Ask for existing records or available exports under the applicable law and agency process.
No. Metadata may describe creation, copying, exporting, or modification of a file, not the event discussed in its contents.
Do not enable macros or execute unfamiliar content. Preserve the original and use appropriate security review and safe viewing tools.
Identify the supplied file and your conversion method, retain the original, and explain any changes affecting how the content is displayed.