Unrecognized annotation from pdf expert

edited March 31, 2020
Hi!
When i extract chinese annotation from pdf expert on ipad, sometimes it can extract information accurately, but sometimes it come up with text like this :
", , , , , 。 : , , , ③; 、 , , ④ 。"
Thankes.
  • Are you highlighting text as well? That might be low-quality OCRed text that is highlighted (e.g., if this is a PDF of an older article).
  • I have the same issue. In the same file or even in the same sentence, all the Chinese words is blank in the annotation, and others like' notations. numbers and letters' are accurate.
    example: ",( ≤ 、 、 93.5mm), 2 0 48mm ≤285mm ≤ 12( 6N6S), , mm, 167.5 74.5mm, 40.4mm,"
  • On a window 10 system, I also have this issues. Even in the same sentence, all the Chinese words are not extract accurately but the English letters are fine to extract.
    Zotero :5.0.96.3,
    zotfile : 5.0.16
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