"O Allah, suffice me with what is lawful instead of what is forbidden..."
There is no single official "copyright" for these duas as they are derived from the Quran and Sunnah. However, you can find high-quality PDFs by searching for the following terms on Google or your preferred search engine: 40 allahumma duas pdf
Since I cannot browse the live internet or access specific user-uploaded PDFs, I cannot review an exact file you have in mind. However, I can give you a available online (e.g., on Islamic sites like QuranicDuas, MyIslam, or PDF libraries), so you can judge if the one you have is good. "O Allah, suffice me with what is lawful