Can I print my to-do list or save it as a PDF?
Task List by Zaweba prints any list on an A4 page, or saves it as a PDF, from File, then Print or save the list as PDF. Here is how to use it well.

File, then Print or save the list as PDF, is the answer in Task List by Zaweba. It turns the list you are looking at into an A4 page, which you can send to a printer or save as a PDF file. A paper copy for the fridge, a meeting or a shop is a couple of clicks away.
Paper still has its place. It needs no screen, it is easy to scribble on, and it is often the clearest way to share a list with someone who does not use the app.
Printing a list
Open the list you want in the sidebar, then choose File, then Print or save the list as PDF. Pick your printer to print it, or choose to save it as a PDF. The page is A4.
Before printing, put the list in a sensible order. Your own drag order is the default sort; sorting by due date or by stars may suit a printed sheet better, depending on who will read it. Choose Back to my order afterwards to return to your own arrangement.
When a PDF is better than paper
A PDF travels well. Email it to a colleague who needs to see the jobs on a project, send a packing list to the family before a trip, or attach a list of snags to a message for a builder. It also makes a dated snapshot: save a PDF of a project list at the end of each month and you have a record of where things stood.
Using a printed list well
Treat the paper as a companion, not a replacement. Tick items with a pen while you are out, then tick the same tasks in Task List when you are back at the PC. That keeps your Completed record accurate, with the right times, and your streak counting the right days.
A printed shopping or packing list works especially well when the task holds a checklist. Steps are counted in the app as progress, such as 2 of 5, and on paper you can work down them on the spot.
Other ways to get a list out
If you want the tasks in a spreadsheet rather than on paper, use Export tasks as CSV, which writes a UTF-8 file that Excel opens and is formula-safe. For moving everything to another PC, or keeping a safe copy, use Export a full backup, which saves everything as JSON without the email password.
For a daily look without printing, the optional daily summary email sends today's tasks, overdue tasks and the day's reminders to your inbox at a time you choose.
Keeping the printout short
A long printed list is rarely read. Print a single list rather than everything, and clear finished work first so the page holds only what is still open. If a list runs to several pages, it may be worth splitting it into smaller lists with their own importance, from Critical down to Someday. Smaller lists also print more neatly, since each fits on its own sheet and can go to the person who needs it.
Task List is free software under the EULA, works offline and needs no account, so printing or saving a PDF happens entirely on your own PC. The page goes to your printer, or the PDF to the folder you choose, and nowhere else. If you print the same list every week, such as a cleaning rota or a shopping list, keep it as a list of recurring tasks so that each new round is waiting when you next print.