LightPDF.com

LightPDF is an all-in-one PDF solution for educators, students, office staff and anyone who are looking for an easy way to work with PDF. It provides multi-platform services, free web app, paid mobile and desktop apps, even API and SDK solutions for developers.

Free Web App
The online solution includes over 20 practical PDF tools and all of them are free to use.There is no limitations to file size or time of use. You can use it to convert PDF to Office and images, turn other formats to PDF, merge, compress, OCR, split, rotate, sign, edit PDF and more. And it allows you to use it through browser on all your devices.

Desktop App
It is a powerful PDF editor with more advanced features.It provides many useful PDF editing, reading, converting and comment features. And it supports creating and filling out PDF forms, batch converting, OCR, splitting documents, etc. Its straightforward interface allows you completing works with PDF in a few clicks.
 
Highlight Features of LightPDF Editor:

Modify PDF texts, images & links
Convert PDF to other formats and vice versa
Batch convert, compress, split, OCR PDFs
Create or edit fillable forms on PDF
OCR to extract and edit scanned PDF
Compress & merge PDF
Insert e-signature & digital signature
Annotate & comment PDF
Search & Replace
Add & remove PDF watermark
Add, change, remove headers & footers
Share documents via link
Upload documents to cloud

Mobile App
LightPDF provides Android and iOS apps which can help you convert, merge, OCR and edit PDF on the go. Moreover, it provides a scan PDF feature that allows users to scan paperwork with their phone camera and turn it to PDFs.