Create, edit or convert your pdf files. Occasionally I have had to extract some images of pdf files, for which this program has helped me and pleasantly surprised, since the process is very fast and the conversion of the file to images is quite fast and of good quality. Also in some moments I had to create some PDFs myself from photographs or text files, I have also in this process pdffil has been very useful, showing a very good performance and rapids 1.- easy to use. It does not require special knowledge. 2.- process of converting from and to pdf is quite fast. 3.- The results are quite good. 3.- create pdf from word, jpeg, excel or ppt files. 4.- export your pdf files to word, excel or jpg. 5.- You can rotate, cut, join, or create watermarks in your pdf. 6.- You can use it for free (although it has a limit of use per day) 7.- The work environment is simple, but effective. 1.- Sometimes, but due to page saturation problems it becomes a bit slow. 2.- You require constant internet connection so if you do not have access you can not use the online program.