Hi Tilman,
First, thanks for the quick response.  I follow several Apache group email 
threads and you are by far the fastest responder in any of them.  Actually, 
that alone doesn’t do you justice.  You’re a total ace and I (along with 
everyone) really appreciate you and what you do for this community.

I followed your instructions and here is the EI and what immediately follows it:

EI
0.00374532 0 0 0.0243902 0 -79.4878 cm
0 3124 25 45  re
f
0 0 0 rg
0.5 3150.5 2482 63  re
f*
2483 0 0 64 0 3150 cm
1 1 1 rg
/Im0 Do
0.000402739 0 0 0.015625 0 -49.2188 cm
0 3062 25 45  re
f
0 0 0 rg
0.5 3088.5 2482 63  re
f*
2483 0 0 64 0 3088 cm
1 1 1 rg
/Im1 Do

Please let me know if there is anything else I can do to help.

Thanks again,
John Petersam

From: Tilman Hausherr <thaush...@t-online.de>
Sent: Friday, February 14, 2025 11:34 AM
To: users@pdfbox.apache.org
Subject: [EXTERNAL] Re: ignoring 'EI' warning

Hi,
Maybe these files will work, but others won't. I just tested it, the file from
https://issues.apache.org/jira/browse/PDFBOX-2163 fails.

hasNoFollowingBinData() tries to find out whether "EI" is followed by typical 
PDF operators (then it means the "EI" is "real"), or by binary data (then it 
means that this "EI" is itself binary data). You can't share the documents, but 
you could try to extract the content stream with PDFDebugger:

[cid:image001.png@01DB7ED6.F8FD69E0]

, then go to the offset mentioned (on windows use NOTEPAD++) and copy a few 
bytes and post them here (make sure not to miss "invisible" characters, look at 
the hex codes). Because you said it is better without the 3 lines, this means 
that noBinData is true, thus the "EI" was really the end. It would be 
interesting to see the next 10 bytes after EI. If you can't share these bytes, 
then consider suggesting a code change.
Tilman


On 14.02.2025 17:00, Petersam, John Contractor wrote:

Hello,

My system, which is running PDFBox 3.0.3, processes about 325k PDF documents 
every day, so we see a lot of odd things.  Of those, about 600 will have 
"ignoring 'EI' assumed to be in the middle of inline image at stream offset" in 
their log files.  Most of the time, this warning simply results in a random 
line being displayed and does not affect our user experience.  However, 
sometimes it results in the entirety of our text not being displayed.



The documents do display properly in Acrobat, but have the same issue with 
pdf.js as well as the Python libraries I have tried.  In an effort to learn 
more about the issue, I downloaded the source code and determined that the PDFs 
are failing in the hasNoFollowingBinData function in PDFStreamParser.



                if (endOpIdx != -1 && startOpIdx != -1 && endOpIdx - startOpIdx 
> 3)

                {

                    noBinData = false;

                }



What's interesting is that if I comment those lines out, I am able to render 
the PDF properly in PDFBox, which in turn allows me create a document which is 
can then be rendered by the other libraries.



I would like to know what this code is doing, and what the ramifications are 
for removing it.  After all, it was written for a reason and the other 
libraries appear to have some similar check.



Any help would be greatly appreciated.   Unfortunately, due to PII reasons I 
cannot share the original documents.



Thanks,

John Petersam




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