How to Read PDF file in Matlab?

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azizullah khan 2014-8-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/151092-how-to-read-pdf-file-in-matlab

回答： sugga singh 2021-2-28

I want to read pdf file and make some changes in it and then save them in excel.... I have tried my best but fail every time....Need your help....Any effort will be greatly appreciated..Thanks in advance.....

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azizullah khan 2014-8-26

编辑：Walter Roberson 2015-5-25

The problem with pdfParsedemo:...when i simulate the code the following error appear

??? Java exception occurred: 
java.lang.NoClassDefFoundError: org/fontbox/afm/AFMParser
at org.pdfbox.pdmodel.font.PDFont.getAFM(PDFont.java:350)
at org.pdfbox.pdmodel.font.PDFont.getAverageFontWidthFromAFMFile(PDFont.java:313)
at org.pdfbox.pdmodel.font.PDSimpleFont.getAverageFontWidth(PDSimpleFont.java:231)
at org.pdfbox.util.PDFStreamEngine.showString(PDFStreamEngine.java:276)
Error in ==> Untitled at 20 
pdfstr = reader.getText(pdfdoc) %#ok 
java.lang.Throwable: Warning: You did not close the PDF Document 
at org.pdfbox.cos.COSDocument.finalize(COSDocument.java:418) 
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method) 
at java.lang.ref.Finalizer.runFinalizer(Unknown Source) 
at java.lang.ref.Finalizer.access$100(Unknown Source) 
at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)
java.lang.Throwable: Warning: You did not close the PDF Document 
at org.pdfbox.cos.COSDocument.finalize(COSDocument.java:418) 
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method) 
at java.lang.ref.Finalizer.runFinalizer(Unknown Source) 
at java.lang.ref.Finalizer.access$100(Unknown Source) 
at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source) 
java.lang.Throwable: Warning: You did not close the PDF Document 
at org.pdfbox.cos.COSDocument.finalize(COSDocument.java:418) 
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method) 
at java.lang.ref.Finalizer.runFinalizer(Unknown Source) 
at java.lang.ref.Finalizer.access$100(Unknown Source) 
at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

Walter Roberson 2016-6-15

pdf is effectively a programming language; you need to execute the commands in order to determine what the output is.

Stefanie Schwarz 2021-1-5

Following up with Naftali's comment, there is also a way to convert a PDF to an image file in MATLAB. See: https://www.mathworks.com/matlabcentral/answers/709623-how-can-i-convert-a-scanned-pdf-to-an-image-using-matlab

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采纳的回答

Christopher Creutzig 2017-10-16

2
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/151092-how-to-read-pdf-file-in-matlab#answer_285959

编辑：Walter Roberson 2017-11-4

Just for the record, Text Analytics Toolbox (new in R2017b) includes a function extractFileText that will extract text data from PDF (or MS Word) files.