Steps to reproduce:

1. Create a page with title containing apostrophe, say Azwandi's Page
2. Save the page
3. Export the page to PDF
4. PDF filename appears as:

   amohdaris-As-{1,time,ddMMyy-HHmm}-6.pdf

   Ideally, the filename should be like

   amohdaris-As-080710-0121-6.pdf