Callas PdfToolbox fits your criteria, but it's not cheap, for just a few dollars more with zero discounts, one could subscribe to the entire Adobe Creative Suite for a year for what the Callas PdfToolbox Desktop version costs. My calculations using Soulver: €499.00 to USD = $552.94 according to exchange rates on 1/31/2020. They do have the occasional sale/discount if you don't want to pay full retail price.

That being said, they have different versions depending on your needs. Desktop, Server, Command-Line, and SDK version for incorporation into software. Impressive cross-platform presence too covering Mac, Windows, and a number of Linux distros.

Not technically a PDF Editor, but from what I'm seeing there are no pdf editors that do what you're asking (to my knowledge) asides from Adobe Acrobat. Preflight functionality for PDFs seems to be exclusive to pre-press type graphics software or developer-type command-line software.

Callas PdfToolbox fits your criteria, but it's not cheap, for just a few dollars more with zero discounts, one could subscribe to the entire Adobe Creative Suite for a year for what the Callas PdfToolbox Desktop version costs. My calculations using Soulver: €499.00 to USD = $552.94 according to exchange rates on 1/31/2020. They do have the occasional sale/discount if you don't want to pay full retail price.

Callas PdfToolbox is offered in different flavors depending on your needs including Desktop, Server, Command-Line, and SDK version for incorporation into third-party software. It also boasts impressive cross-platform presence too with support for Mac, Windows, and a number of Linux distros.

Callas PdfToolbox fits your criteria, but it's not cheap. They do have the occasional sale/discount if you don't want to pay full retail price. They have different versions depending on your needs. Desktop, Server, Command-Line, and SDK version for incorporation into software. Impressive cross-platform presence too covering Mac, Windows, and a number of Linux distros.

Callas PdfToolbox fits your criteria, but it's not cheap, for just a few dollars more with zero discounts, one could subscribe to the entire Adobe Creative Suite for a year for what the Callas PdfToolbox Desktop version costs. My calculations using Soulver: €499.00 to USD = $552.94 according to exchange rates on 1/31/2020. They do have the occasional sale/discount if you don't want to pay full retail price.

That being said, they have different versions depending on your needs. Desktop, Server, Command-Line, and SDK version for incorporation into software. Impressive cross-platform presence too covering Mac, Windows, and a number of Linux distros.