How to remove pages from a pdf?

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Isaac Marín
Isaac Marín 2024-9-12
编辑： Isaac Marín 2024-9-12
When using exportapp on a uifigure who contains uilabels with Tex interpreter, the pdf file contains white pages at the end and I want to delete them.
Here an example code:
File='example.pdf';
Path='D:\Downloads\';
f = uifigure;
lb=uilabel(f,"Text",'x^{2}','Interpreter','tex','Position',[50 50 100 100]);
pause(2)
exportapp(f,fullfile(Path,File))
delete(f)

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采纳的回答

Isaac Marín
Isaac Marín 2024-9-12
编辑：Isaac Marín 2024-9-12
We can remove pages from a pdf using pdfbox
To delete all pages but the first one, example:
Pd=org.apache.pdfbox.pdmodel.PDDocument;
PDFile=java.io.File(fullfile(Path,File));
document=Pd.load(PDFile);
npages=document.getNumberOfPages
if npages>1
for i=npages:-1:2
document.removePage(i-1);
end
document.save(fullfile(Path,File));
end
document.close;

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