Adobe’s PDF file format has been one of the most popular document formats over the years and continues to be so even now. The main reason for them to become so popular, specially on the web, is because one cannot edit pdf documents easily. This is very much unlike other popular document formats like .doc or .txt!
Previously, Adobe Acrobat was the only tool which could create, edit and modify PDF files and it’s a paid tool. But now, we have several alternatives which can do pretty much the same job as the commercial desktop versions at no additional cost!
Edit PDF Online
PDF Escape is a free online PDF editor which lets you edit text, move pages around, add/delete images etc. This web tool is absolutely free and you don’t need to download or install anything in order to make it work. All you need to do is open your web browser, upload the PDF file you want to edit, perform the required actions, and then download the results. It can even edit PDF docs which are password protected.
I must warn you beforehand that refrain from uploading a confidential document; since it is a web service and security is not guaranteed with the online transfer (upload and download).
There are times when you require to fill up a form embedded on a PDF. In such cases, you can check out Fillanypdf or PDFFiller. FillAnyPDF is the easiest way to fill out a pre-printed form. These services require zero installation and very easy to use.
In case you prefer an offline (desktop) version to edit PDF files, then check out PDF XChange Lite which is really good for advance editing of PDF files and is also available for free! You can also check BabyPDF for Windows which lets you read and edit pdf on PC.