Investigated a concern where PDF documents appeared differently when received by other people. Explained that the appearance can vary depending on whether the recipient opens the PDF in Acrobat, a browser or another PDF viewer, and confirmed the behavior was viewer-related rather than a fault in the document.
Provided remote assistance for PDF files that were not opening correctly. The PDF application and file-opening behavior were checked so documents could be opened normally again.
Diagnosed Acrobat remaining stuck in memory and preventing additional PDFs from opening, then completed a full repair installation. Microsoft account issues were also investigated and narrowed down to a local Windows Hello problem for follow-up.
