By upgrading you not only get access to our document building tools, you also get access to all of our other PRO features, including Text Review Export, being able to apply grids and lines, calibrated measurements, and generating custom line styles.
You can get access to Document Builder by upgrading to Drawboard PDF PRO.
To learn more about how Document Builder works, and how to access the tools, you can view this walkthrough to get started:
Anything bigger than that you’ll have to pay for. The only downside to this tool is that it’s only free for up to 10MB worth of files. PDFmerge offers a pretty straightforward and easy-to-use interface for combining PDF files. Since everyone is a fan of free, and the internet has plenty of options to help us in our endeavours, here are a few of the more popular web options for combining PDF files: