valerybokov commented on pull request #107:
URL: https://github.com/apache/pdfbox/pull/107#issuecomment-997280280
> Good find. I think this can be fixed by changing the code to be like this:
>
> ```
> else if (counter > 0)
> {
> counter = 0;
> source.seek(position + 1);
> position = -1L;
> //continue;
> }
> ```
>
> The code is used only when we do a brute force search on broken PDFs. If a
PDF would contain "%%%EOF" then "%%EOF" wouldn't be found with the existing
code. The perfect solution would be
https://en.wikipedia.org/wiki/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm but
that would need more time.
ok. Looks like for lastindexof method has the same problem.
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