Creating PDF online

Today I ultamately finished the poster of project - Kiln Modelling, which spent me two days by using CorelDraw to make. For the convenience of being viewed by my supervisor, I wanted to make it as PDF file. After thinking a while I remembered the online service of PDF maker called 'PDF Online' that is bookmarked in my del.icio.us. The website can help us produce PDF file based on several kinds of file format including those we use frequently such as PPT, HTML, PNG, etc. All we need to do is uploading the local file and submiting our email addresses, then the produced PDF will be sent to the email account in 10 minutes. Since it is free, the file size is limited in 2MB. I uploaded one PNG file and got the PDF version in only 1 minute. It's awesome.