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https://issues.apache.org/jira/browse/PDFBOX-1294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268404#comment-13268404
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Maruan Sahyoun commented on PDFBOX-1294:
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The issues comes from the fact the updates are stored as an incremental update
to the original which the old sequential parser didn't handle well whereas the
non sequential parser handles them correctly.
> Unable to read values from PDF Form fields saved by Acrobat Reader
> ------------------------------------------------------------------
>
> Key: PDFBOX-1294
> URL: https://issues.apache.org/jira/browse/PDFBOX-1294
> Project: PDFBox
> Issue Type: Wish
> Components: PDModel.AcroForm
> Affects Versions: 1.6.0
> Environment: Windows 7, eclipse Indigo, Java 1.6.0
> Reporter: Steve Deal
> Labels: Form, PDF
> Fix For: 1.7.0
>
> Attachments: ReaderModifiedForm.pdf
>
>
> The Document Properties names and values are readable.
> The PDF Form fields names are readable but the values of the PDF Forms fields
> are the initial values, not those saved using Acrobat Reader 9.
> Attached file demonstrates problem using this code:
> PDDocument pdDoc = PDDocument.load(filename);
>
> PDDocumentCatalog docCatalog = pdDoc.getDocumentCatalog();
> PDAcroForm acroForm = docCatalog.getAcroForm();
> System.out.println("acroForm COSObject:
> "+acroForm.getCOSObject().toString());
> List fldList = acroForm.getFields();
> Iterator fIter = fldList.iterator();
> while(fIter.hasNext()){
> PDField field = (PDField)fIter.next();
>
> System.out.println("----------------------------------------------");
> System.out.print("field FQN: " +
> field.getFullyQualifiedName());
> System.out.print(" type: " + field.getFieldType() );
> System.out.println(" value: " + field.getValue() );
> }
> It should be noted that the above code will print out the default form field
> values that were saved to the form using Acrobat Pro X. However if the PDF
> form is subsequently filled out and saved using Acrobat Reader, those values
> are not accessible using PDFBox.
> Apparently form field values saved by Acrobat Reader are stored differently
> than the default form field values.
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