I ran into this problem multiple times. Many PDF tools “worked”, but they merged files silently even when something was wrong.
That scared me more than slow performance.
So I built a small offline PDF tool for my own work. It focuses on: - working fully offline - explicit logs instead of silent behavior - warning when files are missing or duplicated - prioritizing correctness over speed
I’m not trying to sell anything. I just wanted a tool I could trust in real document workflows.
I’m sharing this to see if others have faced similar issues, and whether this approach makes sense to you.