Problem

Confluence search works for PPT file if it is bigger than 1MB. But the same does not hold for PPTX file, if the file is more than 1MB.

Environment

.Confluence 7.4.4

Steps to Reproduce

1. Login to Confluence and upload a PPTX file of size larger than 1MB.
2. Wait for couple of minutes to ensure indexing is done and perform a name search, content search of the newly uploaded file.
3. Name search works. But when searched for content, the search result does not provide any results. 
4. Even if the following system property is added into the setenv file to increase the allowed file size for PPTX, the search does not work for content:

CATALINA_OPTS="-Dofficeconnector.powerpoint.extractor.maxlength=209715200 ${CATALINA_OPTS}"

Expected Results

Search for content from the PPTX file should yield results.

Actual Results

Currently the search is not yielding any results.

Workaround

Save the file as .ppt

Notes