I am setting up a SP2016 on-premise farm. Some pdf files with newer version cannot be crawled. Here is my findings:
- Those pdf files are v1.7 (Acrobat 8.x, Acrobat 9.x)
- Search only return those pdf by search with file name. Search with pdf content will not return result.
- In the search result page, those files preview show
"If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document … You can upgrade to the latest …"
- In the crawl log, those files are shown up as warning. Error is "Document was partially processed."
All the pdf in question have size smaller than 2MB. Each pdf have 1 or 2 pages only. We have other pdf and word document larger than that have no problem.
Should I install pdf viewer on the crawling server to solve the problem?