Hello. I participate in translation bounty campaign, and now i get 2 projects where i get translation files in pdf format, maybe someoen can tell me how i can edit them or i need own pdf file modify on docs format??
If you want it in free of cost you can search for free pdf editior. which convert your file into editable form. like microsoft office.
i do it a lot. no need for spending money on paid products if your work is being done by free tools. i also suggest you to try them for free.