FreePDFConvert.com offers free service which allows visitors of your blog to download your blog posts as PDF documents for offline viewing and for sharing with others.
To enable this function in your blog you have to add the JavaScript within the body tags of your blog template, exactly where you want the button to show up.
<script type=”text/javascript”></script> <script src=”http://web2pdf.freepdfconvert.com/pdfbutton.js” type=”text/javascript”></script>
Visitors can click the “Save Page as PDF” button and the current blog post will be saved as a PDF document.