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https://issues.apache.org/jira/browse/PDFBOX-4812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17083184#comment-17083184
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Tilman Hausherr edited comment on PDFBOX-4812 at 4/14/20, 12:51 PM:
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GIGO. The content stream of the appearance stream of the annotation widget of
that field is:
{noformat}
q 1.0 1.0 1.0 rg 0 0 496.4 500.2 re f Q /Tx BMC q 0.0 0.0 496.4 500.2 re W n
BT 0.0 0.0 0.0 rg 1.0 491.9 Td /F0 9.0 Tf
<0019001D0016001500030024002800250003004800510046004F001100030047004C0056004D00110003004600520050005300110003004700480056000300490052005800550056>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 480.9 Td > Tj ET BT 0.0 0.0 0.0 rg 1.0
469.9 Td /F0 9.0 Tf
<001A001D0015001B000300100003001A001D001600130003004700700046004F001100030047004C0056004D0011000300190018004E00390003004700480053004400550057000300260029002F0003006A000300270052005000500048004F004700440051004A00480003>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 458.9 Td /F0 9.0 Tf
<0003000300030003000300030003000300030003000300030003000300030003000300030003000300030003000300030003001000100021000300470070005000110003002F0015000F002F0016>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 447.9 Td /F0 9.0 Tf
<00030003000300030003000300030003000300030003000300030003000300030003000300030003000300030003000300030010001000210003004700700046004F001100030053004400550003002C000300210021>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 436.9 Td > Tj ET BT 0.0 0.0 0.0 rg 1.0
425.9 Td /F0 9.0 Tf
<00140013001D0013001300030028002F002C0024000300500048005700030045004400550055004800030025001400030048005100030056004800550059004C004600480003006A000300240058004500440051004A0048>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 414.9 Td > Tj ET Q EMC
{noformat}
So there is a second Tj here "> Tj > Tj". Sadly PDFBox doesn't make a log
message, maybe it happened too often, or maybe we forgot. I found it by opening
the file with PDF.js and looking at the console. PDFBox takes this appearance
stream and makes a content stream of the form XObject when flattening.
was (Author: tilman):
GIGO. The content stream of the appearance stream of the annotation widget of
that field is:
{noformat}
q 1.0 1.0 1.0 rg 0 0 496.4 500.2 re f Q /Tx BMC q 0.0 0.0 496.4 500.2 re W n
BT 0.0 0.0 0.0 rg 1.0 491.9 Td /F0 9.0 Tf
<0019001D0016001500030024002800250003004800510046004F001100030047004C0056004D00110003004600520050005300110003004700480056000300490052005800550056>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 480.9 Td > Tj ET BT 0.0 0.0 0.0 rg 1.0
469.9 Td /F0 9.0 Tf
<001A001D0015001B000300100003001A001D001600130003004700700046004F001100030047004C0056004D0011000300190018004E00390003004700480053004400550057000300260029002F0003006A000300270052005000500048004F004700440051004A00480003>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 458.9 Td /F0 9.0 Tf
<0003000300030003000300030003000300030003000300030003000300030003000300030003000300030003000300030003001000100021000300470070005000110003002F0015000F002F0016>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 447.9 Td /F0 9.0 Tf
<00030003000300030003000300030003000300030003000300030003000300030003000300030003000300030003000300030010001000210003004700700046004F001100030053004400550003002C000300210021>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 436.9 Td > Tj ET BT 0.0 0.0 0.0 rg 1.0
425.9 Td /F0 9.0 Tf
<00140013001D0013001300030028002F002C0024000300500048005700030045004400550055004800030025001400030048005100030056004800550059004C004600480003006A000300240058004500440051004A0048>
Tj > Tj ET BT 0.0 0.0 0.0 rg 1.0 414.9 Td > Tj ET Q EMC
{noformat}
So there is a second Tj here "> Tj > Tj". Sadly PDFBox doesn't make a log
message, maybe it happened too often, or maybe we forgot. I found it by opening
the file with PDF.js and looking at the console. PDFBox takes this appearance
streams and makes a content stream of the form XObject when flattening.
> flatten can corrput PDF file
> ----------------------------
>
> Key: PDFBOX-4812
> URL: https://issues.apache.org/jira/browse/PDFBOX-4812
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.19
> Environment: Windows 7, Eclipse Neon, Java 8
> Reporter: Jean-Pascal Laux
> Priority: Major
> Attachments: Rapport de poste 10042020 P1 flattened.pdf, Rapport de
> poste 10042020 P1 original.pdf
>
>
> Hello,
> Depend of the content of the a text field, flatten create a PDF document
> without the value of the text value and Acorbat REader gives a error message
> when it opens the document.
> I have to rewrite the field value to have a correct PDF document.
> PDField field=form.getField("Détail page 1");
> if (field!=null) field.setValue(field.getValueAsString());
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