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https://issues.apache.org/jira/browse/PDFBOX-2843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14605081#comment-14605081
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Richard Wolfgram edited comment on PDFBOX-2843 at 6/29/15 4:09 AM:
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Nevermind - I figured it out - I just took a look at PDFTextStreamEngine and
added the following operators in the constructor:
addOperator(new BeginText());
addOperator(new Concatenate());
addOperator(new DrawObject()); // special text version
addOperator(new EndText());
addOperator(new SetGraphicsStateParameters());
addOperator(new Save());
addOperator(new Restore());
addOperator(new NextLine());
addOperator(new SetCharSpacing());
addOperator(new MoveText());
addOperator(new MoveTextSetLeading());
addOperator(new SetFontAndSize());
addOperator(new ShowText());
addOperator(new ShowTextAdjusted());
addOperator(new SetTextLeading());
addOperator(new SetMatrix());
addOperator(new SetTextRenderingMode());
addOperator(new SetTextRise());
addOperator(new SetWordSpacing());
addOperator(new SetTextHorizontalScaling());
addOperator(new ShowTextLine());
addOperator(new ShowTextLineAndSpace());
I think I will be able to figure out exactly what I need to include to do what
I want to do. I am processing the text of each page, converting rotated text
and playing with space widths then comparing results against multiple language
dictionaries to improve text stripping.
One thing I am concerned about it if I need to take into account the following
from PDFTextStreamEngine:
// load additional glyph list for Unicode mapping
String path = "org/apache/pdfbox/resources/glyphlist/additional.txt";
InputStream input =
GlyphList.class.getClassLoader().getResourceAsStream(path);
glyphList = new GlyphList(GlyphList.getAdobeGlyphList(), input);
I was having some trouble with some Turkish characters in 1.8 as far as being
able to write them to a PDF. 2.0 solved the problem.
was (Author: future alex):
Nevermind - I figured it out - I just took a look at PDFTextStreamEngine and
added the following operators in the constructor:
addOperator(new BeginText());
addOperator(new Concatenate());
addOperator(new DrawObject()); // special text version
addOperator(new EndText());
addOperator(new SetGraphicsStateParameters());
addOperator(new Save());
addOperator(new Restore());
addOperator(new NextLine());
addOperator(new SetCharSpacing());
addOperator(new MoveText());
addOperator(new MoveTextSetLeading());
addOperator(new SetFontAndSize());
addOperator(new ShowText());
addOperator(new ShowTextAdjusted());
addOperator(new SetTextLeading());
addOperator(new SetMatrix());
addOperator(new SetTextRenderingMode());
addOperator(new SetTextRise());
addOperator(new SetWordSpacing());
addOperator(new SetTextHorizontalScaling());
addOperator(new ShowTextLine());
addOperator(new ShowTextLineAndSpace());
I think I will be able to figure out exactly what I need to include to do what
I want to do. I am processing the text of each page, converting rotated text
and playing with space widths then comparing results against multiple language
dictionaries to improve text stripping.
> widthOfSpace() appears wrong in TextPosition
> --------------------------------------------
>
> Key: PDFBOX-2843
> URL: https://issues.apache.org/jira/browse/PDFBOX-2843
> Project: PDFBox
> Issue Type: Bug
> Components: Text extraction
> Affects Versions: 2.0.0
> Environment: JDK 8 on Windows 7
> Reporter: Richard Wolfgram
> Fix For: 2.0.0
>
> Attachments: Hello World.pdf, StripperTest18.java, StripperTest20.java
>
>
> When using the following override method of PDFTextStripper I am getting a
> large difference in values for TextPosition.getWidthOfSpace() between version
> 1.8.6 and pdfbox-2.0.0-20150611.100833-1423
> {code}
> @Override
> protected void processTextPosition(TextPosition textPos)
> {
> float spaceWidth = textPos.getWidthOfSpace();
> float width = textPos.getWidth();
> System.out.println(textPos.getCharacter() + " - Width of Space=" +
> spaceWidth + " - width=" + width);
> builder.append(textPos.getCharacter());
> }
> {code}
> In 1.8.6 average character width is around 5 and space width is around 2.5
> In 2.0 average character width is around 5 and space width is around 27
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