1- PDFElement 6
PDFelement is an excellent tool you can use to transform your office documents. It allows you to ‘create PDF from scanners, with options to perform OCR or generate PDF/A files’. You can add annotations to your documents, create fillable forms and export form data into CSV spreadsheet that saves you both paper and time; label pages with meaningful descriptions rather than just page numbers and many more.
1- PDF Aid
2- PDF Reader
3- PDF to Excel Converter
PDF to Excel Converter is a cool web tool that allows users to turn any PDF to Excel for easy editing.
4- PDF Converter

PDF Converter is a great tool that allows its users to create PDFs from virtually any document format or convert PDF documents to Word, Excel and PowerPoint.
5- Web2PDF

This service is particularly useful for those who have already set up a classroom blog or website or even a personal blog. Web2PDF Online allows its users to easily convert HTML to PDF so that visitors to your blog can save information on your website in the form of a PDF.
6- Booklet Creator

As its name entails , it enables users to easily and quickly convert any PDF document to a printable booklet.
7- PageFlipFlap

It allows its users to convert any Word or PDF document into a flip book. I personally like the sleek and clean format of flip books. They are such an enjoyment to read.
8- I Love PDF

This tool allows its users to either merge several PDF files into one or split them. This is very easy to use and does not require any download or installation software.
9- PDF to Word

PDF to Word is a great web2.0 tool that allows it users to quickly convert their PDFs into other word formats .
10- Bee PDF

Bee PDF is a free hosting and sharing website . It allows its users to upload their PDFs and share them with others .
11- HTML to PDF

HTML to PDF is a simple converter that can turn any web page or blog post to a PDF document in seconds.
12- BlogBooker

It allows you to “ produce a high-quality PDF blog book from all your blog entries and comments . Archives can be generated from any blog running on Wordpress, Blogger , Live Journal and its derivatives . The whole process takes about 3 to 4 minutes depending on the size of your blog.”
13- PDF Tools for Researchers
Here is a list of some awesome PDF tools that can be use by researchers, teachers, and students.
14- CleverPDF (sponsored addition)
CleverPDF offers 20 PDF tools online for free. It helps you easily convert PDF to Office, iWork, EPUB and image formats, create PDF from Office and images, compress PDF, merge PDF, encrypt PDF and much more. Both online and offline version is available.

Bee PDF is a free hosting and sharing website . It allows its users to upload their PDFs and share them with others .
11- HTML to PDF

HTML to PDF is a simple converter that can turn any web page or blog post to a PDF document in seconds.
12- BlogBooker

It allows you to “ produce a high-quality PDF blog book from all your blog entries and comments . Archives can be generated from any blog running on Wordpress, Blogger , Live Journal and its derivatives . The whole process takes about 3 to 4 minutes depending on the size of your blog.”
13- PDF Tools for Researchers
Here is a list of some awesome PDF tools that can be use by researchers, teachers, and students.
14- CleverPDF (sponsored addition)
CleverPDF offers 20 PDF tools online for free. It helps you easily convert PDF to Office, iWork, EPUB and image formats, create PDF from Office and images, compress PDF, merge PDF, encrypt PDF and much more. Both online and offline version is available.