I tried a dozen free PDF editors and finally found the best one

I'm a freelance writer, and this profession involves dealing with a lot of PDFs. I have to fill and sign contracts with my employers, create invoices to send to all my clients, and sign NDAs sent by brands who send me products before launch -- you get the drift. My Mac is filled with PDFs. A lot of times, these PDFs aren't just single-use documents. They can be edited later on to change a few entries here and there and reused. For instance, I need to write letters to the customs department here in India to receive shipments sent to me from abroad. I have the format stored as a PDF, so all I have to do is change the tracking number and date every time. Such tasks require a PDF editor. More often than not, I resorted to using online services like ilovepdf for this purpose. However, some features on the platform like OCR aren't free.