'Unknown format'

Discussion in 'Android General Discussions' started by paul0015, Feb 21, 2018.

  1. paul0015

    paul0015 New Member

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    Hi all, I am new here. Glad to join the community!
    There's a PDF file that I've been working on for month, most of which was written on my Samsung Galaxy J2. But since I have uploadea Android, I cannot open it. The file gives the following message: 'Unknown format'.
    May I know has anyone got this error?

     
  2. me just sayin

    me just sayin Diamond Member

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    what app were you using to write the pdf? maybe check the file extension to see if it is being saved as a pdf. also try it on your computer and see if acrobat will open it.
     
  3. PereDroid

    PereDroid DF News Team Reporter

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    How do you "work" on a PDF? What program or app did you use on the J?

    Sent from my Moto Z (2) using Tapatalk
     
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  4. miga10

    miga10 New Member

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    How to View PDF Files on an Android Phone:
    1. Download Adobe Acrobat Reader on your Android smartphone in GooglePlay.
    2. If the file is damaged try to recover pdf HERE.