Segmentation fault with EmbeddedFile class

[ikreb7]

I want to use the EmbeddedFile class. However, I get a segmentation fault.

from poppler import load_from_file

pdf_document = load_from_file("Portfolio.pdf")

for file in pdf_document.embedded_files():
     print(file.name)

What kind of information could you help further? I saw at the TODO file, that EmbeddedFile is not still testet. Does it work yet?

[cbrunet]

I did some quick tests, and your example should work... I realized however that there are small errors in the code for is_valid and modification_date.

Did you try with different pdf files? What version of poppler are you using?

[ikreb7]

Thanks for your response.

I use python-poppler==0.2.2 and tested several pdf files.

[cbrunet]

I see there are fixes related to embedded files in Poppler 20.11 (https://poppler.freedesktop.org/releases.html). This could be related.

What poppler version are you compiled with? You can get it using poppler.version() function.

[bence98]

I have a similar issue. It seems that pybind11 is prematurely calling the destructor (and thus, free()) on some Poppler objects (for example, EmbeddedFile* elements of std::vector<EmbeddedFile*> Document::embedded_files()), which results in a double free() and other memory corruption bugs.

[cbrunet]

This could be related to pybind/pybind11#637.

Could you please try the https://github.com/cbrunet/python-poppler/tree/segfault-with-files branch, and tell me if it solves the problem?

[ikreb7]

I use the the poppler version (0, 86, 1).

I ran the program with your branch, but it doesn't help.

I created a test file for you. It makes the the debugging for you more simple. And thank you very much for your efforts.

portfolio_0.pdf