On Sat, Aug 30, 2025 at 03:22:58PM +0700, Max Nikulin wrote:
For me it is not uncommon to get PDF files in search results. That is why I suspect that something is wrong with your PDF's. Are they generated to be sent to printer or to be published on a web site? Does "pdftotext FILE.PDF -" is able to extract readable text? Does "pdfinfo FILE.PDF" list author, title, etc.? Are links to these files have descriptive context?
Max, I am very grateful for your diagnosis. I was unaware of metadata for PDF. With a bit of searching, I located several authoritative articles on metadata for PDF. It turns out that the hyperref package for LaTeX has provision and instruction for the metadata fields. And there is a paper by Karl Rupp, "PDF Metadata in LaTeX Documents". RLH
