PDF Converter online service needs a logo design

This is what PDF Converter (Not mandatory. Logo can be without any text.) was looking for in their logo design

PDF Converter (http://www.freepdfconvert.com) is a online web-based document to PDF converter software and needs a logo design.

The logo should have relation with PDF or document itself. Or with conversion action.
It should identify the service which it represent.

For example the logo which we like https://www.uservoice.com/
Megaphone represent the ticketing online service, has direct relationship with the service. This is just example what kind of logo we would like to get, please do not use https://www.uservoice.com as prototype.


Please do not submit abstract logos which has a symbols not related with the service. For example DesignCrowd logo has some kind of abstract symbol which do not identify the service itself.
Also do not use 3d style or Transition filters(fade-in fade-out) in logo.

Any colors can be used. The http://www.freepdfconvert.com web page design is not final and the logo color palette can be different than web… Read more