Parsing PDF file using Apache PDFBox to get outlines
0
Now I can use the PDFBox to extract the outlines from PDF, but some PDF can get the outlines, others can't.
Every PDF has outlines and when I open a pdf use pdf read tool, I can click an outline to a certain page.
Here is my code:
public static void main(String args) {
try {
PDDocument document = PDDocument.load(new File(filePath));
PDDocumentOutline outline = document.getDocumentCatalog().getDocumentOutline();
getOutlines(document, outline, "");
document.close();
} catch (InvalidPasswordException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void getOutlines(PDDocument document, PDOutlineNode bookmark, String indentation) throws IOException{
PDOutlineItem current = bookmark.getFirstChild();
while (current != null) {
PDPage currentPage = current.findDestinationPage(document);
Integer pageNumber = document.getDocumentCatalog().getPages().indexOf(currentPage) + 1;
System.out.println(current.getTitle() + "-------->" + pageNumber);
getOutlines(document, current, indentation);
current = current.getNextSibling();
}
}
pdf pdfbox
asked Nov 22 '18 at 3:25
th000th000
336
|
show 7 more comments
0
Now I can use the PDFBox to extract the outlines from PDF, but some PDF can get the outlines, others can't.
Every PDF has outlines and when I open a pdf use pdf read tool, I can click an outline to a certain page.
Here is my code:
public static void main(String args) {
try {
PDDocument document = PDDocument.load(new File(filePath));
PDDocumentOutline outline = document.getDocumentCatalog().getDocumentOutline();
getOutlines(document, outline, "");
document.close();
} catch (InvalidPasswordException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void getOutlines(PDDocument document, PDOutlineNode bookmark, String indentation) throws IOException{
PDOutlineItem current = bookmark.getFirstChild();
while (current != null) {
PDPage currentPage = current.findDestinationPage(document);
Integer pageNumber = document.getDocumentCatalog().getPages().indexOf(currentPage) + 1;
System.out.println(current.getTitle() + "-------->" + pageNumber);
getOutlines(document, current, indentation);
current = current.getNextSibling();
}
}
pdf pdfbox
asked Nov 22 '18 at 3:25
th000th000
336
1
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
1
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32
|
show 7 more comments
0
0
0
Now I can use the PDFBox to extract the outlines from PDF, but some PDF can get the outlines, others can't.
Every PDF has outlines and when I open a pdf use pdf read tool, I can click an outline to a certain page.
Here is my code:
public static void main(String args) {
try {
PDDocument document = PDDocument.load(new File(filePath));
PDDocumentOutline outline = document.getDocumentCatalog().getDocumentOutline();
getOutlines(document, outline, "");
document.close();
} catch (InvalidPasswordException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void getOutlines(PDDocument document, PDOutlineNode bookmark, String indentation) throws IOException{
PDOutlineItem current = bookmark.getFirstChild();
while (current != null) {
PDPage currentPage = current.findDestinationPage(document);
Integer pageNumber = document.getDocumentCatalog().getPages().indexOf(currentPage) + 1;
System.out.println(current.getTitle() + "-------->" + pageNumber);
getOutlines(document, current, indentation);
current = current.getNextSibling();
}
}
pdf pdfbox
asked Nov 22 '18 at 3:25
th000th000
336
Now I can use the PDFBox to extract the outlines from PDF, but some PDF can get the outlines, others can't.
Every PDF has outlines and when I open a pdf use pdf read tool, I can click an outline to a certain page.
Here is my code:
public static void main(String args) {
try {
PDDocument document = PDDocument.load(new File(filePath));
PDDocumentOutline outline = document.getDocumentCatalog().getDocumentOutline();
getOutlines(document, outline, "");
document.close();
} catch (InvalidPasswordException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void getOutlines(PDDocument document, PDOutlineNode bookmark, String indentation) throws IOException{
PDOutlineItem current = bookmark.getFirstChild();
while (current != null) {
PDPage currentPage = current.findDestinationPage(document);
Integer pageNumber = document.getDocumentCatalog().getPages().indexOf(currentPage) + 1;
System.out.println(current.getTitle() + "-------->" + pageNumber);
getOutlines(document, current, indentation);
current = current.getNextSibling();
}
}
pdf pdfbox
pdf pdfbox
asked Nov 22 '18 at 3:25
th000th000
336
asked Nov 22 '18 at 3:25
th000th000
336
edited Nov 22 '18 at 3:36
th000
asked Nov 22 '18 at 3:25
th000th000
336
asked Nov 22 '18 at 3:25
th000th000
336
asked Nov 22 '18 at 3:25
th000th000
336
336
1
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
1
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32
|
show 7 more comments
1
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
1
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32
1
1
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
1
1
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32
|
show 7 more comments
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1
If I understand you correctly, your code works for some files and not for others. Thus, it would be helpful if you shared an example file for which it does not work.
– mkl
Nov 22 '18 at 7:08
1
"Every PDF has outlines" - no.
– Tilman Hausherr
Nov 22 '18 at 7:22
@mkl the PDF have outlines but can parse it and I want to know the structure of a PDF file from this link
– th000
Nov 22 '18 at 7:27
@TilmanHausherr I means the PDFs I want to parse have outlines.
– th000
Nov 22 '18 at 7:28
Your link requires individual permission.
– Tilman Hausherr
Nov 22 '18 at 7:32