PDF: Choose an image quality. The higher the image quality, the larger the file size of the exported copy. To restrict access to the copy, select the “Require password to open” checkbox, then enter the requested information.
Word: To restrict access to the copy, select the “Require password to open” checkbox, then enter the requested information. If the file needs to be compatible with an older version of Word (1997-2004), click Advanced Options, then choose .doc from the pop-up menu.
Plain Text: Body text is exported as plain (unformatted) text. Text boxes, shapes, images, lines, tables, and charts aren’t exported. Page layout documents don't have body text, so they can’t be exported as plain text.
Rich Text Format: Body text and tables are exported as formatted (RTF) text and tables. If the document has text boxes, shapes, lines, and charts that can be exported, they are exported as images, and the document is exported in RTFD file format. Other applications may not be able to open an RTFD file. Page layout documents can’t be exported in RTF or RTFD format.
ePub: For information about the options for ePub, see the task below.
Pages ’09: To restrict access to the copy, select the “Require password to open” checkbox, then enter the requested information.
I seem to be having pretty much the same problem. I am using Moodle 3.1 on Centos 6.7 with MySql and I DO have unoconv installed. Typing convert commands into a terminal windows does work and makes beautiful pdf files.
When I go to grade a students online text, I do see a message in the annotation screen saying, Generating the PDF..., but nothing ever appears, just blank white space with scroll bars. If students upload a document file, I get the same results. If they upload a PDF file I can see that in the annotation window, mark on it, save it, and the students can see the result.
The path to unoconv is set correctly and clicking, Test unoconv path, reports, The unoconv path appears to be properly configured. However, when I click on, Download the converted pdf test file, which at first will try to open directly in Firefox, it is empty. Also, the document properties for the pdf is empty. If I go ahead and download the pdf file, then try to open it, Acrobat Reader reports, Adobe Acrobat Reader DC could not open 'document.pdf' because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).
I am stuck on what I need to try next. Does anyone have any ideas?