Any solution that has been prepared for online reading can be made into a PDF version with a single click of relevant button. The resulting PDF will contain a separate cover page, all collections of writings in their own parts with all printable contents. Page numbers in the footers with section information and before/after appecialpages are included. Images will be as well positioned as on the web, font choices are exactly right and otherwise results are generally just fine. Currently it is preferred to use content list type of "plain structure" as others like "presentation page" and blog-like would give unexpected results. Instead of the whole solutions, one can limit the use of the function to a selected writing collection.

This has been done in a completely different way to the previous attempt, where a TeX file was first generated, containing both styling and content, and then a PDF file was generated from it. Instead, the external service generates the PDF file from the same ingredients that browsers use to generate web pages, i.e. HTML code, CSS styling and JavaScript code. An important addition is the use of CSS3 Paged Media:

"CSS module specifies how pages are generated and laid out to hold fragmented content in a paged presentation. It adds functionality for controlling page margins, page size and orientation, and headers and footers, and extends generated content to enable page numbering and running headers / footers." (CSS Paged Media Module Level 3. W3C Working Draft, 18 October 2018.)

Many browsers have not implemented this standard and that is why printing directly from the browser does not provide optimal results as such, when the purpose is to include page numbering etc. E.g. the Firefox browser does not make much use of CSS Paged Media (since last tested), but Edge and Chrome do. However, a problem with using them is that they either include extra information like the date in the header and footer, or the header and footer contents have to be completely empty (the printing settings only have an either/or option). There is a button for making a printable version of the whole solution and icons for doing the same just for a writing collection.

Actually, as the external service that is supposed to be used for generating PDF files requires a fee to be paid, process is decreased by a one phase so that a user is served with a downloadable HTML file that contains all the mentioned "ingredients" and content. User can then use a browser to print it, if the browser has enough support for the CSS3 Paged Media.

There is only one adjustment for this in the adjustments of a solution, the font size multiplier. Choosing option "1.00" works appropriately when printing at A4 size, affecting all text sizes in a writing (headings, captions, etc.). This does not affect redirectlink writings, which are affected by the same setting on target solutions.