i have used your online tools to overlay one PDF on top of another with excellent results recently. However; I have tried the same process over the last few days but unfortunately I cannot select any PDF files to upload, as they are greyed out. I can select other files such as DOC or JPG, but not PDF. I am using an iPhone8 with the latest iOS.

Any help you can give would be appreciated.

Jon Answered question 2019-04-09