Unable to combine pdf files
I have been combining pdf files in past no problem but now it won't combine any. I have unchecked the portfolio button. Now it tells me it is unable to combine some documents saying that because they were signed by me electronically they can't combine. But I have been combining these before. It would be silly to have to print, and scan these documents just to combine them.. going backwards in technology! Also, the signed docs are now showing as password protected but I never put a password on them. I don't even know what the password would be. Any help would be appreciated.