There is a solution to every problem. But most often it is the problem you are not aware of. Let my solutions inspire you.
These applications are taken from real life. Most of them have once solved a problem for me, or still do. Some are also useful for many others. All are available for free.
You can filter the list by tags or sort it with the following controls. Particularly interesting items are highlighted in yellow.
Easy PDF signing.netfilessecsrcwindows★★★★
Easy digital signing of PDF documents without rebuilding them. Allows multiple signing.
One item, ca. 1 330 lines of code, estimated development costs: 2 700 €