[jira] [Comment Edited] (TIKA-1226) PDFTextStripper fails while getting data of PDF form fields of type PDSignatureField
[
https://issues.apache.org/jira/browse/TIKA-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13880877#comment-13880877
]
Eric Knauel edited comment on TIKA-1226 at 1/24/14 10:34 AM:
-
Tim,
I've uploaded a test PDF document that contains a field of type signature.
That's not the original document that led to the error but it produces the same
stack trace. The form data is empty and document is not signed. Somehow I
couldn't get the PDF editor to set the permission for signing to true. (This
permission was enabled in my original document, but I can't publish the
document.)
I think it would be useful to grab information on the signer from the PDF!
was (Author: uknela):
PDF test file with a form that contains a field of type signature.
PDFTextStripper fails while getting data of PDF form fields of type
PDSignatureField
Key: TIKA-1226
URL: https://issues.apache.org/jira/browse/TIKA-1226
Project: Tika
Issue Type: Bug
Affects Versions: 1.5
Reporter: Eric Knauel
Assignee: Tim Allison
Attachments: pdf-form-with-signature-field-empty.pdf
I have a PDF document that contains a filled in form. Among the various
fields of type text and radio button there are multiple fields for digital
signatures. When I load this document into tika-app I get the following
exception:
{noformat}
Caused by: java.lang.RuntimeException: Can't get signature as String, use
getSignature() instead.
at
org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField.getValue(PDSignatureField.java:131)
at
org.apache.tika.parser.pdf.PDF2XHTML.addFieldString(PDF2XHTML.java:467)
at
org.apache.tika.parser.pdf.PDF2XHTML.processAcroField(PDF2XHTML.java:425)
at
org.apache.tika.parser.pdf.PDF2XHTML.extractAcroForm(PDF2XHTML.java:411)
at org.apache.tika.parser.pdf.PDF2XHTML.endDocument(PDF2XHTML.java:184)
at
org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:330)
at org.apache.tika.parser.pdf.PDF2XHTML.process(PDF2XHTML.java:95)
at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:143)
at
org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:242)
... 43 more
{noformat}
The problem seems to be that PDF2XHTML seems to expect that it can call
getValue() on all PDField objects. According to the PDFBox 1.8.3 java doc
this is not true for the sub class PDSignatureField:
http://pdfbox.apache.org/docs/1.8.3/javadocs/org/apache/pdfbox/pdmodel/interactive/form/PDSignatureField.html
The java doc says that getSignature() should be called instead.
Assuming that the information inside the signature is not relevant for the
extraction process and can be discarded the following patch helps:
{noformat}
Index: tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
+UTF-8
===
--- tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
(revision 1560617)
+++ tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
(revision )
@@ -40,6 +40,7 @@
import
org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineNode;
import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
import org.apache.pdfbox.pdmodel.interactive.form.PDField;
+import org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField;
import org.apache.pdfbox.util.PDFTextStripper;
import org.apache.pdfbox.util.TextPosition;
import org.apache.tika.exception.TikaException;
@@ -464,7 +465,9 @@
}
String value = ;
try {
+ if (!(field instanceof PDSignatureField)) {
- value = field.getValue();
+ value = field.getValue();
+ }
} catch (IOException e) {
//swallow
}
{noformat}
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[jira] [Comment Edited] (TIKA-1226) PDFTextStripper fails while getting data of PDF form fields of type PDSignatureField
[
https://issues.apache.org/jira/browse/TIKA-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13881383#comment-13881383
]
Tim Allison edited comment on TIKA-1226 at 1/24/14 8:22 PM:
Thank you for the test file. I'll use that in the formal test. I used another
doc for dev that I unfortunately can't share. Does this format look good? My
dev doc only had name and date, but the other info would also show up if it
existed...
{noformat}
div class=acroform
ol
li altName=nameName: my name/li
li
ol type=signaturedata
li
signdata=date2014-01-17T11:57:26-0500/li
li signdata=namemy name/li
/ol
/li
/ol
/div
{noformat}
was (Author: talli...@mitre.org):
Thank you for the test file. I'll use that in the formal test. I used another
doc for dev that I unfortunately can't share. Does this format look good? My
dev doc only had name and date, but the other info would also show up if it
existed...
{noformat}
div class=acroform
ol
li altName=nameName: my name/li
li
ol type=signaturedata
li
signdata=date2014-01-17T11:57:26-0500/li
li signdata=namemy name/li
/ol
/li
/ol
/div
{noformat}
PDFTextStripper fails while getting data of PDF form fields of type
PDSignatureField
Key: TIKA-1226
URL: https://issues.apache.org/jira/browse/TIKA-1226
Project: Tika
Issue Type: Bug
Affects Versions: 1.5
Reporter: Eric Knauel
Assignee: Tim Allison
Attachments: pdf-form-with-signature-field-empty.pdf
I have a PDF document that contains a filled in form. Among the various
fields of type text and radio button there are multiple fields for digital
signatures. When I load this document into tika-app I get the following
exception:
{noformat}
Caused by: java.lang.RuntimeException: Can't get signature as String, use
getSignature() instead.
at
org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField.getValue(PDSignatureField.java:131)
at
org.apache.tika.parser.pdf.PDF2XHTML.addFieldString(PDF2XHTML.java:467)
at
org.apache.tika.parser.pdf.PDF2XHTML.processAcroField(PDF2XHTML.java:425)
at
org.apache.tika.parser.pdf.PDF2XHTML.extractAcroForm(PDF2XHTML.java:411)
at org.apache.tika.parser.pdf.PDF2XHTML.endDocument(PDF2XHTML.java:184)
at
org.apache.pdfbox.util.PDFTextStripper.writeText(PDFTextStripper.java:330)
at org.apache.tika.parser.pdf.PDF2XHTML.process(PDF2XHTML.java:95)
at org.apache.tika.parser.pdf.PDFParser.parse(PDFParser.java:143)
at
org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:242)
... 43 more
{noformat}
The problem seems to be that PDF2XHTML seems to expect that it can call
getValue() on all PDField objects. According to the PDFBox 1.8.3 java doc
this is not true for the sub class PDSignatureField:
http://pdfbox.apache.org/docs/1.8.3/javadocs/org/apache/pdfbox/pdmodel/interactive/form/PDSignatureField.html
The java doc says that getSignature() should be called instead.
Assuming that the information inside the signature is not relevant for the
extraction process and can be discarded the following patch helps:
{noformat}
Index: tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
+UTF-8
===
--- tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
(revision 1560617)
+++ tika-parsers/src/main/java/org/apache/tika/parser/pdf/PDF2XHTML.java
(revision )
@@ -40,6 +40,7 @@
import
org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineNode;
import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
import org.apache.pdfbox.pdmodel.interactive.form.PDField;
+import org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField;
import org.apache.pdfbox.util.PDFTextStripper;
import org.apache.pdfbox.util.TextPosition;
import org.apache.tika.exception.TikaException;
@@ -464,7 +465,9 @@
}
String value = ;
try {
+ if (!(field instanceof PDSignatureField)) {
- value = field.getValue();
+ value = field.getValue();
+ }
} catch (IOException e) {
//swallow
}
{noformat}
--
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