Pdf compiler

I am delighted with PDF writer facility. I have a Windows writer called Pdfx that enables user to type in data to a form, for example, and PdfxTools that allows user to split or merge Pdfs.

Unfortunately Docutrack, who's program it is, don't support a Mac version. Is there a similar product available to Mac users?

All of those capabilities are built right into Mac. You can edit, annotate, add pages to or combine pdf files, all with the humble-looking, misleadingly named app called Preview. Here's a link to a tutorial on how to do it:
How to Edit PDFs With Preview in Mac OSX Leopard | eHow.com

Many thanks. I'd got half way there, i.e. the pages were there but I hadn't realised that, once I had opened the first page, I had to drag the others into it to make it a complete document.

Still need a bit of practice, but I'll get the hang of it eventually.

Further progress but merging several multi-page pdfs is not fully explained. I receive two e-mailed pdfs once a week. One is made up of landscape pages the second of portrait. I initially save them as date followed by 1 & 2. If both are highlighted in Finder & opened they will appear in Preview's sidebar as two icons.

To amalgamate the two documents you seem first to have to click on each document to open all the pages. You then have to drag them up to the top and they disappear into the new document which is now in the correct order.

If you don't open them up in this way all you seem able to do is place the second document above the first rather than merging them. I hope I have explained the problem adequately.

You may find this tutorial helpful. It's a bit more in depth and shows you how to automate the process.

Thanks. I've worked out a simple way to do what I wanted with these files but I can see that Automator has potential for all sorts of actions. I also note that David Pogue covers it in his 'Missing Manual'.