This project should collect various PDF examples files with various defects for testing purposes.

This folder contains all PDF files where /Length key is broken (for example missing, incorrect length, etc.)

correct_length.pdf - This is just reference file with correct /Length and uncompressed /Contents stream under 2 0 obj.

correct_length_dl.pdf - This is the same file as in previous example but contains also correct /DL.

missing_length.pdf - This file missing /Length key and is uncompressed. In general this PDF file is not valid as it's hard to determine the correct size of stream. Even this fact, PDF processors may render content in some level but rendered page content may be incomplete or not shown at all.

missing_length_dl.pdf - This file missing /Length as in previous example but contains /DL key which points to decompressed size. As uncompressed streams have same /Length and /DL (encrypted file exception) this may helps some PDF processor to determine correct length of stream.

shorter_length.pdf - This file has /Length specified shorter that is in reality. Different PDF processors process this situation differently. Some shows part of content, some nothing depepnding how they try to correct the situation.

shorter_length_dl.pdf - This is the same file as previous example but contains /DL key with correct length.

zero_length.pdf - This file has /Length set as zero. This may lead to not render content.

zero_length_dl.pdf - This is the same file as in previous example but contains also correct /DL.

longer_length.pdf - This file has /Length value exceed real length of stream. As whole page operators are read this should render page normally but PDF processors may read more bytes which may cause some error.

longer_length_dl.pdf - This is the same file as in previous example but contains correct /DL.