Write Article: top open source PDF editors

Num. of articles: 1
Words per article: 800
Information for the blog/website: technical blog
Industry: Internet/Software
Topic: top open source PDF editors
Tone: Informal/Casual
Outline & Structure: Introduction: give a brief introduction for the benefits of using open source PDF editors. (less than 100 words)
part 1. list out at least 3 open source PDF editors with website address, key features, score, platform(Windows, Mac or Linux), advantages and disadvantages.
Extensive research needed: yes
Extra notes: 1. extra research is needed;
2. Unique article with more than 800 words.
3. Absolutely don't plagiarize. I can check it out.
4. Send in Doc with required images.
5. Finish in 3 day