A friend of mine called me asking for help converting an important document from a PDF to a DOC. I go to a website to convert the PDF and when I open it it gives me this... Click image for larger version. 

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ID:	93790. I then go to open the PDF in Edge and Firefox (they are the only other PDF viewers I have other than Adobe) and they give me these messages... Click image for larger version. 

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ID:	93792Click image for larger version. 

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ID:	93793. But when I open it in Adobe Acrobat Reader DC, it shows the document normally. It only opens in Adobe Acrobat Reader DC. I don't know what was done to the file before it was given to me and I have tried printing it to a PDF and opening it but it gives me the same error. Does anyone have any ideas?