Does a poorly formatted experience certificate impact my image and prospects?

Context: I worked in a small private engineering firm for 3+ years. Throughout my service, I did everything with perfection, even helped other depts, beyond my scope, upon owner's requests.
Owing to unprofessional behavior, I resigned citing personal reasons.
The owner didn't want to let me go, convinced me a lot but since I rejected his "future appraisal", he didn't take it well. I was harassed by passive aggressive behavior throughout notice period and in the end, he wrote a terribly formatted experience certificate.

Note: Nothing wrong is written in it. Dates and designation are accurate. But it is written in extremely small letters, with 0 punctuation, no capital letters or even a full stop. It was clearly intentional since he used to be obsessed with formatting of documents.

Questions:
1. Does this letters format create a bad image in the mind of any recruiter or employer or HR?
2. Does it convey that I worked in a company so insignificant, which can't even write properly?

Thanks in advance for your kind opinions.

Hi,

1. Yes there are probabilities. HR might doubt about the genuinity of the document. Prospective Employer might carry out BGV process also. In such scenario the feedback of your ex-employer might not be positive ( my assessment based on your narration. )

2. Yes the quality of experience letter also counts. But as it conveys the right date and designation I think there is nothing to worry. It depends on the future employer how they perceive it.

Thank you for the help.
Interestingly, there was a background verification (physical) and I seem to have passed it. But the thing still bothers me. What is the remedy? The person is so hellbent on harassing ex employees, he even spies on them, tries to contact their current employers, etc. It seems like something that will bother me forever. It has started to affect my mental health since it's in my head 24 x 7.

Hi,

If you had cleared the BGV why to bother much about this. Such ignore and join your new employer office. I don't see any remedy for this.

Such Employers ( especially a person with monopoly power) will keep some grudges for some time and over a period of time their perceptions might change.

Ah! Forgive my overthinking nature. Its just that this might bother me in the future. I don't want to miss out good opportunities much later for something irrelevant from the past.
But your response really gives some relief.
Thank you.