I'm not entirely sure what you are asking.
If you are asking if you can convert .eft to .pdf, you cannot covert .eft to .pdf because a .eft is an encrypted file type.
I just went through getting electronic fingerprints for a eform 1.
1) Made and appointment at UPS store to get it done.
https://www.printscan.com/live-scan-ups-fingerprinting/
I believe I had to choose a format type and chose ATF. My fingerprints were accepted upon submission of eform 1.
2) Printscan sends and email with the .eft file. Do not download to phone or try and open it. Download to an actual computer and have it in a handy folder for when completing eform 1.
3) When filling out eform 1 you will upload that .etf file in the responsible person section. Note it is not a required field and easy to miss. It is right after you upload your passport like photo.
https://www.nationalguntrusts.com/b...atf-announces-atf-eform-1-eft-file-acceptance
I followed the National Gun Trusts youtube video on filling out eform 1. It was very helpful except it was missing the electronic fingerprint information.
That is what my experience was over the last month or so completing the eform 1. I hope it is helpful to you and I answered your question.