"save" operation with modified stream creates broken PDF

[abysas]

I wanted to replace the stream with content from the file. I performed the following operations:

• modify stream 45 cidset.dat
• save sample_fixed.pdf

peePDF creates broken PDF: simple overview reveals that the document has no trailer after xref table and no %%EOF marker, while Adobe Preflight complains with the following errors:

• Document is damaged and needs repair
• Indirect object “endobj” keyword not followed by an EOL marker
• Metadata does not conform to XMP
• Syntax problem: Indirect object has object number not preceded by an EOL marker
• Syntax problem: Indirect object uses improper separation (object and generation number)
• Syntax problem: Indirect object uses improper separation (”obj” keyword and generation number)
• Syntax problem: Indirect object “endobj” keyword not preceded by an EOL marker
• Syntax problem: Indirect object “obj” keyword not followed by an EOL marker
• Syntax problem: PDF contains data after end of file marker

[abysas]

Here is the link to the sample PDF, stream data, the resulted PDF and Preflight report: http://www.filehosting.org/file/details/504975/peepdf_issue_40_files.zip