fix/Handle empty lists and malformed PDF dictionary values #3426
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…y lists and improve handling of list elements for offset calculations
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Fix: Handle empty lists and malformed PDF dictionary values
Description
This PR addresses issue #12 by improving error handling for empty lists and malformed PDF dictionary values in the PDF parser. The changes prevent the "List index out of range" error that occurred when parsing certain PDF files.
Changes
Testing
The changes have been tested with the problematic PDF file from the original issue (deniable removal 2 with incremental update.pdf) and other edge cases involving empty lists and malformed dictionaries.
Related Issue
Fixes #12
Additional Notes
While this PR improves the robustness of PDF parsing, further improvements to the
_emit_dictfunction might be needed for complete handling of all edge cases.