[Poppler-bugs] [Bug 66937] New: page_renderer::render_page() sometimes calculates a crop wrong

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66937

          Priority: medium
            Bug ID: 66937
          Assignee: poppler-bugs at lists.freedesktop.org
           Summary: page_renderer::render_page() sometimes calculates a
                    crop wrong
          Severity: normal
    Classification: Unclassified
                OS: Windows (All)
          Reporter: pignatoff at mail.ru
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: general
           Product: poppler

Created attachment 82457
  --> https://bugs.freedesktop.org/attachment.cgi?id=82457&action=edit
page_renderer::render_page() calculates a crop wrong on this document

At our company we use poppler for rendering pdf documents inside our viewer.
The viewer lets the user a possibility to zoom a chosen rectangular area of a
document page. This mechanism is implemented by the call to
page_renderer::render_page() with resolution and other parameters calculated
appropriately. Usually it works correctly. But sometimes a crop is calculated
wrong. For example for the attached document, where the zoomed area is
displayed shifter either horizontally or vertically.

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