PDF (Portable Document Format) documents are a world-wide popular way to exchange and share formal documents. Why people choose PDF format? Because it's platform independent, more secure, trusted, extensible etc.
PDF files are widely used in bussiness or academic. However, it's not that familiar for some users. They may get problem about how to open and read pdf files, or how to create pdf, or how to convert pdf document, or how to edit pdf. So we prepare a free PDF tools list, which you can easily find a tool you need.
Free PDF Reader
Adobe PDF Reader: PDF standard is created by Adobe, so it supports most pdf
Download Link: http://get.adobe.com/reader/
Foxit PDF Reader (Recommended): Foxit PDF Reader is smaller and takes less resource to read PDF files.
Download Link: http://www.foxitsoftware.com/pdf/reader/addons.php
Free PDF Creator
Microsoft Add-in: If you are using Microsoft Office 2007 or above, you can download and install Microsoft Office Add-in. Then you can directly save your office files, such as word, excel, ppt to PDF files directly.
Download Link: http://www.microsoft.com/downloads/en/details.aspx
Simpo PDF Creator Lite (Recommended): If you not only want to convert office files to PDF, but also others, you can try this pdf creator, which can create pdf files from many printable documents, such as office document, images, html, etc.
Download Link: http://www.simpopdf.com/pdf-creator-lite.html
Free PDF Converter
So far, there are only two good and free PDF converters as I tested. Both are online converter.
ZamZar (Recommended): It supports uploading up to 100MB PDF file, and converts to many different format, such as .jpg, .png, .doc, .ppt, .xls, .html, .txt, etc.
ConvertPDFtoWord: It can only convert PDF to word document, the most common file format. And it preserves the layout quite well.
Free OCR Converter
Some users write to ask why they fail to convert a PDF file to word. The most probable reason is that pdf file is scanned PDF. Scanned PDF means pages in PDF files are images, but not real text. To convert this kind of PDF, OCR software are needed. However, most OCR can't recognize all characters in PDF well.
Online OCR: It can extract text from image (JPG, BMP, TIFF, GIF) and convert into editable Word, Text, Excel, PDF, Html output formats. Max file size is 4MB.