Open any Web browser on your computer. Navigate to the Zamzar website, and wait for the home page to load.
Click Choose Files, and navigate to the PDF file on your computer. Click Open.
Click the Convert Files To drop-down box to reveal a list of options. Scroll down to the Image Formats section, and select JPEG from the list.
Type your email address in the provided text field. Though Zamzar does not require an account to use its service, Zamzar needs an email address to send the downloadable file to your computer.
Click the Convert button, and wait for Zamzar to upload the PDF file to its server. The conversion process can take a few minutes to complete. After a moment, check your inbox for an email from Zamzar.
Open the Zamzar email in your inbox. Click the link inside the email to download the JPEG file to your computer. If you do not retrieve the JPEG file within 24 hours, Zamzar discards it and you have to reconvert the PDF file.