The "Deskew Pages" function does not work correctly

[Jensen Head]

In most cases, the "Deskew Pages" feature works correctly. But sometimes there are pages on which, for unknown reasons, the function refuses to work. Example — https://drive.google.com/file/d/13WMRypHEC-f90HWAYFv8Q-_VXLeCXGoh/view (after activating the function, the page remains unchanged, with a significant skew)

PDF-XChange Editor Plus 10.2.1, build 385 (Enhanced OCR)
Microsoft Windows 10.0.19045.4239

[Daniel - PDF-XChange]

Hello, Jensen Head

Thank you for the file, It seems that this has already been improved in the current version of our internal nightly build, so you can look forward to this being fixed (at least for this document) in the next release.
If you have other samples which have the same issue, please do not hesitate to send some along. I can double check, and forward any which still show the same problem, to the Dev team for resolution.

Kind regards,

[Jensen Head]

If you have other samples which have the same issue, please do not hesitate to send some along.

Original:

Deskewed:

PDF-XChange Editor Plus 10.4.3, build 391 (Enhanced OCR)

[Daniel - PDF-XChange]

Hello, Jensen Head

Thank you for the report, The current nightly once again seems to have less of an issue but it does appear to be slightly "overskewing" the image still.

Unfortunately in this documents case, the main item we use to determine skew (lines of text) are curved due to a poor quality scan. We do now offer a 2D perspective correction function (As part of "enhance scanned pages"), but for some reason that also does not want to cooperate with this file in my tests, so I have forwarded it to the Dev team, reporting both issues.

Hopefully we can find a way to offer this for you, but I should warn that it is, to some degree, expected for Deskew to struggle with pages that have "curved" text images like this one does.

Kind regards,