A: No. As long as the text is legible and the solutions are correct, watermarks are fine. The "Repack" usually removes obstructive watermarks.
The demand for chapter-wise question banks with solutions is extremely high among intermediate (11th & 12th) students in Telangana and Andhra Pradesh. A “Repack” typically refers to a curated, compiled, and often cleaned/organized collection of PDFs from multiple sources (previous years, coaching materials, and official keys) into a single downloadable archive.