a6c8ac46a6
* Fix O(n) memory growth in PDF conversion by calling page.close() after each page * Refactor PDF memory optimization tests for improved readability and consistency * Add memory benchmarking tests for PDF conversion with page.close() fix * Remove unnecessary blank lines in PDF memory optimization tests for cleaner code * Bump version to 0.1.6b2 in __about__.py * Update PDF conversion tests to include mimetype in StreamInfo