https://bugs.kde.org/show_bug.cgi?id=491876
Bug ID: 491876
Summary: Feature: Rectangle Tool: Add Option to XOR the Colour
Classification: Applications
Product: okular
Version: 23.08.1
Platform: Other
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: okular-de...@kde.org
Reporter: leo.m...@syonic.eu
Target Milestone: ---
Created attachment 172735
--> https://bugs.kde.org/attachment.cgi?id=172735&action=edit
PDF document with example of Rectangle tool
Rectangle Tool: Add Option to XOR the Colour
SUMMARY
It is sometimes useful to highlight an entire paragraph or segment of text. The
rectangle tool offers a nicer geometry than the Highlighter tool. However, the
color is simply added over, making it more difficult to read due to the poor
contrast. Implementing a XOR-variant of the Rectangle tool (similar to the
Highlighter tool) would improve the visibility of the text.
Note:
The attached pdf document has various Headings which are "embedded" in the main
text (see on page 2 and following pages). This defies the purpose of the
heading (but this is in the scope of the journal)! I used the Rectangle tool to
mark these headings: the geometry is better than with the Highlighter tool.
STEPS TO REPRODUCE
1. Open attached pdf document
2. See examples on page 1: Highlighter vs Rectangle
3. See examples on page 2: Rectangle tool for hidden Headings
OBSERVED RESULT
The text is partly obscured with the Rectangle tool: very poor contrast.
EXPECTED RESULT
Implement option for Rectangle tool that behaves like the Text highlighter: the
colour needs probably to be XOR'ed.
SOFTWARE/OS VERSIONS
Windows: 10
ADDITIONAL INFORMATION
Note:
The Rectangle tool may also have a nicer geometry with text with superscripts:
e.g. the document contains a lot on expressions like "CD4+", "CD8+", where the
"+" is superscript. Other documents may include references as superscript.
Highlighting an entire paragraph using the Rectangle tool may look nicer in
these instances.
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