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https://issues.apache.org/jira/browse/PDFBOX-5090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17273334#comment-17273334
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Tilman Hausherr commented on PDFBOX-5090:
-----------------------------------------
In a first step, the code 49077 is mapped into cid 2516 (0x9d4). In the next
step, this value is searched in the Adobe-Korea1-UCS2 table but isn't found.
{noformat}
<09CF> <09D4> <C5FC>
{noformat}
because a part of this range (<09CF> <09D4>) is ignored. Before the two
commits, a range of 6 elements were used, after the commits, only 4 so that the
last result is C5FF, see comment by [~mkl] in the related issue.
I'm wondering whether Adobe uses a more "relaxed" approach for built-in tables?
I also remember something about ranges being 2-dimensional sometimes?!
> Missing text extraction under certain conditions starting with apache pdfbox
> 2.0.18
> -----------------------------------------------------------------------------------
>
> Key: PDFBOX-5090
> URL: https://issues.apache.org/jira/browse/PDFBOX-5090
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.18, 2.0.19, 2.0.20, 2.0.21, 2.0.22
> Environment: jdk 1.8, apache pdfbox, fontbox 2.0.18~, windows 10
> Reporter: sungwon kim
> Priority: Major
> Labels: regression
> Attachments: 128채널심장전기도시스템을위한3차원매핑소프트웨어개발.pdf,
> 128채널심장전기도시스템을위한3차원매핑소프트웨어개발.txt,
> 128채널심장전기도시스템을위한3차원매핑소프트웨어개발_2p_left_botton.PNG, PDFBOX-5090_reduced.pdf,
> textstripper_2.0.17_128채널심장전기도시스템을위한3차원매핑소프트웨어개발_2p_left_botton.PNG,
> textstripper_2.0.17_独立財政機関をめぐる論点整理_3p_top.PNG,
> textstripper_2.0.18_128채널심장전기도시스템을위한3차원매핑소프트웨어개발_2p_left_botton.PNG,
> textstripper_2.0.18_独立財政機関をめぐる論点整理_3p_top.PNG, 独立財政機関をめぐる論点整理.pdf,
> 独立財政機関をめぐる論点整理_3p_top.PNG
>
>
> When calling PDFTextStripper.getText() function on pdfbox 2.0.18 or later, it
> fails to extract text with any condition.
> It is suspected that the missing text extraction phenomenon is associated
> with either the font type or the font size or text's width and height.
> I have attached the text extraction results of version 2.0.17 and version
> 2.0.18 and the sample data used for the test.
> code
>
> {code:java}
> PDDocument pdDocument = PDDocument.load(new File(path));
> PDFTextStripper stripper = new PDFTextStripper();
> {code}
> dependencies
>
> {code:java}
> <properties>
> <apache.pdfbox.version>2.0.18</apache.pdfbox.version>
> </properties>
> <dependencies>
> <dependency>
> <groupId>org.apache.pdfbox</groupId>
> <artifactId>pdfbox</artifactId>
> <version>${apache.pdfbox.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.pdfbox</groupId>
> <artifactId>fontbox</artifactId>
> <version>${apache.pdfbox.version}</version>
> </dependency>
> <dependency>
> <groupId>org.apache.pdfbox</groupId>
> <artifactId>xmpbox</artifactId>
> <version>${apache.pdfbox.version}</version>
> </dependency>
> </dependencies>
> {code}
>
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