Using Acrobat Pro you can configure a Preflight to assess the PDF. "Without OCR" - OCR presupposes the PDF's page content is the output of a scanner. That'd be an image. An image has no text, columns, styles, etc., etc. - So none of that is available for export. What can be exported is the image (to an Acrobat supported image file format). To export to TXT, RTF, DOC or DOCX the has to be renderable text (actual font encoding information that maps to Unicode). You get that via OCR eh. Note that "outlined" fonts are not fonts per se - just a fancy/pretty graphic rendition of a font's glyph. Can't OCR those. If the publishers are sending you PDFs without renderable text then clearly they don't want repurposing of content eh. Maybe you can get the topics of such content from another source that supports repurpose more readily. Be well...
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