Pdfs read right to left, up to down text (Chinese, Japanese) do not create extracts correctly.

[nnashwin]

Description

When making an extract with pdfs in formats that are read right to left, extracts are created incorrectly.
(Note: I have only seen this in Japanese. I have not found a traditionally written (right to left, top to bottom) pdf in Chinese or other languages to test yet)

Steps to Reproduce

Tell us how to reproduce this issue.

1. Import the attached pdf with Ctrl + Alt + I
2. make an extract with Alt + x
3. See that the characters are not in the correct order.

Expected behavior

The extract created in supermemo is the sentence in the correct order.

Logs, Screenshots, ...

Pdf where error was discovered.
fz_murakamijp.pdf

Environment (fill where applicable)

• Version: PDF Plugin 2.0.3.57
• Last version that did not exhibit the issue: Unsure
• SM Version: SM 18.04
• OS: Windows 10 64bit
• OS Language: [e.g. English (UK)]
• Browser: N/A