Hyperlinked puzzle PDFs for reMarkable and Kindle Scribe: what changes when the contents page is tappable
A puzzle book on an e-ink tablet is a PDF, a stack of pages with no index behind it, so a puzzle near the end is a long swipe away and its solution is somewhere at the back. A tappable contents page removes that swipe. In our e-ink layout the page right after the rules is a Contents page: tap a number and that puzzle opens, and every puzzle page carries a Solution link to its own solution and a Contents link back. The page itself is built for the screen rather than for paper: 157 x 210 mm, the 3:4 shape of a 10.3 inch e-ink display, so a page fills the screen without bars at the sides. This note covers the page size, the layout behind it, what the links do in all three files of an edition, and how the file gets onto a reader.
The page is a screen, not a sheet of paper
The reMarkable 2 and the reMarkable Paper Pro both have 1404 x 1872 dots, which at 226 dots per inch gives 157.8 x 210.4 mm, and that is where the 157 x 210 mm page comes from. The Kindle Scribe with 1860 x 2480 dots and Boox readers of that size have the same 3:4 ratio, so the same page sits on those screens as well.
That single decision is what keeps the grid large: a page cut for A4 and shown on a 3:4 screen is letterboxed, and every millimetre of that band is taken off the puzzle.
What changes on the page when nobody prints it
Nothing is bound and nothing is trimmed, so the 8 mm margin is the same on all four sides and does not alternate between left and right pages. There is one puzzle per page even on a small grid, because you page through a reader whole screens at a time. The cell ceiling goes up from 22 mm to 30 mm, because you write into it with a stylus rather than a pencil. Solutions go four to a page instead of six, page numbers are dropped because the reader pages itself, and the lines get stronger contrast for a display with sixteen shades of grey.
The contents page and the two links on every page
The contents page lists every puzzle number as a link, grouped by level. From a puzzle page, Solution jumps to that puzzle's answer and Contents jumps back to the list; from a solution, one link goes back to its own puzzle.
These are ordinary links in HTML, and Chrome keeps them when it prints to PDF, as Link annotations with a destination inside the same file. The test of a 300 puzzle book counts 379 pages, one of them the Contents page, and 300 links back to the contents.
Three files, one puzzle set
An e-ink edition holds 300 puzzles in three levels, 100 easy, 100 medium and 100 hard, with the solutions at the back. The finished Voles E-ink edition has three PDFs of that same set: the e-ink file with 379 pages on a 157 x 210 mm page, an A4 file with 304 pages and a US Letter file with 304 pages, and the PDF check passed on all three.
In an e-ink edition the builder puts the links into the A4 and US Letter files as well, so tapping works in all three; older catalogue editions meant for print stay without links, so published files stay unchanged.
Every puzzle was built and solved by our own program and kept only when the solver found exactly one solution, and that solution is the one printed at the back.
Getting the file onto your reader
Download the PDF on a computer or phone and copy it to your reader the way you normally add a book: the reMarkable desktop or mobile app, Send to Kindle for the Scribe, or a USB cable and the device folder for Boox. Nothing is installed and no account of ours is needed.
Frequently asked questions
Do the links survive the transfer to the tablet?
They live inside the PDF as Link annotations pointing to a destination in the same file, so they travel with it. A reader that opens PDF links follows them; one that does not still shows every page, and the contents page is a printed list of numbers as well.
Why 157 x 210 mm and not A4?
Because a 10.3 inch e-ink screen is 3:4, the same ratio as 1404 x 1872 dots at 226 dots per inch, so a 157 x 210 mm page fills it without bars at the sides. The A4 and US Letter files are in the same edition for anyone who prefers paper.
Are the e-ink editions on sale already?
Not yet. As of 17 September 2026 the e-ink editions of all ten games are built locally and not published, with a planned price of 4.90 € for 300 puzzles. What you can buy today is the printable range.
Where the books are now
The ten puzzle books on our puzzle books page hold 100 puzzles each, with a PDF for A4 and one for US Letter; a single book is 4.90 € with VAT included and all ten together are 19.90 €. The e-ink editions with 300 puzzles are built and waiting, not published yet.
Sources. The facts in this note are numbered after our internal fact list and were checked on the publication date. If a source has changed since, write to andrej@arling.sk and we will correct this page.
- F134, F135: ARLing, formát e-ink strany pre knihy hlavolamov (overené 17. 9. 2026)
- F136: ARLing, plán e-ink edícií (overené 17. 9. 2026)
- F137: ARLing, manifest a kontrola PDF edície Voles E-ink (overené 17. 9. 2026)
- F138: ARLing, klikateľné PDF pre čítačky, strana Obsah a odkazy (overené 17. 9. 2026)
- F139: ARLing, overenie odkazov v PDF pri tlači z prehliadača Chrome, 17. 9. 2026
- F140: ARLing, schválené znenie ponuky e-ink kníh, blok o prenose do zariadenia (overené 17. 9. 2026)
- F141: ARLing, schválené znenie ponuky e-ink kníh, blok o kontrole zadaní (overené 17. 9. 2026)
- F142: ARLing, pravidlo, ktoré edície dostávajú odkazy (overené 17. 9. 2026)
- F143: ARLing Puzzle books (https://arling.sk/puzzle-books/), overené 17. 9. 2026
- F144: ARLing, stav e-ink edícií k 17. 9. 2026: postavené, nezverejnené