Look Inside Has to Be Your Word on a Crowded Grid
A word-search Look Inside is another path to hunt. This page is a noisy grid. They strike every repeat and read the word that stays, left to right, top to bottom.
Paste the list. Print one crowded grid, or one grid per clean word, each with a matching key for the back of the book.
Try the free demo. Demo output is watermarked. Paid files are watermark-free.
A Letterbox Book, a Class Sheet, or Friday’s Pack
Look Inside has to be your word on a crowded grid, not last month’s leftover page. Instant Puzzle Books stacks the grids, then the keys, at the trim you already keep for word interiors.
A tight 4-by-3 sheet is a warm-up. The default 6-by-5 is the period page. Stretch the grid when the next title should take longer. The word has to fit.
Your List Is the Hidden Word. Fill and Fonts Are What They See.
Type the list or load a .txt. By default each word can use a letter only once. Words that reuse a letter get flagged before you print. Attach word:description and that text becomes the title on the puzzle and the key.
Change the noise and the page changes. Digits, or a short alphabet, when the next title needs a different look.
Up to three fonts and five colors on one grid. Leave the letters in word order, or anagram them first (Randomised). They still read left to right, top to bottom.
One List Today. Several Files Tomorrow.
Turn All Words on and every usable word becomes its own grid. Or name how many puzzles you want from the list and stop there. Each word gets a puzzle image and a matching key: the word stays, the noise cells go blank or take a character you pick.
Choose Letterbox for one list and one grid look. Instant Puzzle Books writes the title page, contents, and a clickable path from each grid to its key. Export that book as an interactive PDF book from Instant Puzzle Books or Puzzle Book Studio, and those links click. Puzzle Book Studio edits that one collection.
Choose Letterbox Productivity when several word-list files need one pass. Productivity is Time Saver: each file becomes a row with its own grid and quantity. Each file can shuffle before it prints, so two files from the same theme do not ship the same order. Studio then builds several collections into one book.
You can move up to Letterbox Productivity after you buy.
Try the free demo, then pick Letterbox or Letterbox Productivity at the top of this page.
| Letterbox | Letterbox Productivity | |
|---|---|---|
| Setups per run | One list, one grid look | Several word-list files in one batch |
| Instant Puzzle Books | Yes | Yes |
| Puzzle Book Studio | This one collection | Several collections in one book |
| Interactive PDF books | Yes, from Instant Puzzle Books or Puzzle Book Studio | Yes, from Instant Puzzle Books or Puzzle Book Studio |
| How you run lists | One list, one look | Time Saver: several lists in one batch |
| Licence to sell finished books, worksheets, and packs to your own readers | Yes | Yes |
| Licence to sell or supply generated puzzles to other publishers | Sell to your own readers | That, plus sell or supply generated puzzles to other publishers |
Who This Is For
Publishers listing a word title. The shopper opens Look Inside on your word, hidden in a noisy grid.
Teachers and tutors. A tight grid for extra practice. A wider grid for the long page. Each word still writes a student grid and a matching key.
Licensing and Commercial Use
Letterbox lets you sell the finished books, worksheets, and printable packs you make to your own readers and customers, on KDP, Etsy, Teachers Pay Teachers, or your own store. One-time commercial-use license. Watermark-free files.
Letterbox Productivity includes that, plus you may sell or supply the puzzles you generate to other publishers and sellers.
The licence covers the finished books, worksheets, and packs you make. If you add your own word lists, they need to be yours, or licensed for the store you sell on.
Product Details
| Product | Puzzle Maker Pro – Letterbox |
| Editions | Letterbox; Letterbox Productivity |
| Platform | Windows desktop |
| Internet required | No |
| Puzzle rule | One word is hidden in a letter grid. Distractor letters all repeat. The solver crosses out every letter that appears more than once and reads what is left, left to right, top to bottom |
| Word list | Typed lines or a .txt file. One word per puzzle. By default each word can use a letter only once. word:description sets the image title |
| Verify | Checks unique letters on the Words tab. Pass: All words have unique letters |
| Fill Characters | Default ABCDEFGHIJKLMNOPQRSTUVWXYZ. Hidden-word letters are removed from the fill. Digits and a shorter set are allowed |
| Word Appearance | Regular (default) or Randomised (anagram before placement). Reading order stays left to right, top to bottom |
| Letter Case | All Uppercase (default), All Lowercase, Random 1 (A and a count as the same letter), Random 2 (A and a count as different; a letter may appear at most twice) |
| Grid | Rows 4 to 20 (default 6). Columns 3 to 20 (default 5). The word must fit |
| Quantity | 1 to 1000. Ignored when All Words is on |
| All Words | One puzzle per clean word |
| Fonts and colors | Up to 3 fonts. Optional random bold, random italic. Color Variations adds two extra colors (up to 5 colors) |
| Image titles | Title default: Word Description. Description default: Remove duplicate letters |
| Solution image | Word letters stay. Distractor cells blank (default) or a character you pick (default =) |
| Output formats | JPG, PNG, transparent PNG |
| Solution pages | Yes, a solution image generated with every puzzle |
| Puzzle books | Instant Puzzle Books on both editions; Puzzle Book Studio on Letterbox (this one collection) and on Productivity (several collections); title page, table of contents, solution cross-references; interactive PDF books from Instant Puzzle Books or Puzzle Book Studio |
| Time Saver | On Productivity. Several word-list files in one batch, then several collections in one book |
| Upgrades | You can move up to Letterbox Productivity after you buy |
| Commercial license | Sell the finished books, worksheets, and packs you make to your own readers and customers. Productivity adds selling or supplying the puzzles you generate to other publishers and sellers |
| Free demo | Yes |
| Delivery | Immediate, in your member area |
Questions Before You Buy
Is there a free demo?
Yes. Puzzle Maker Pro has a free demo. Demo output is watermarked. Paid files are watermark-free.
Can I upgrade later?
Yes. You can move up to Letterbox Productivity after you buy. Start with Letterbox if that fits the book or pack you are making today. That edition already includes Instant Puzzle Books and Puzzle Book Studio for this one collection. Productivity is Time Saver: several word-list files in one batch, then several collections in one book.
How does Letterbox work?
Letterbox hides one word in a dense letter grid. The solver crosses off duplicate letters and reads the leftover letters left to right, top to bottom.
Where are the tutorials?
The Letterbox tutorials show the clicks, including getting started.
Can I use my own word list?
Yes. Type the lines or load a .txt. By default each word can use a letter only once. Verify flags the rest. Attach a description with word:description and that text becomes the title on the puzzle and the key.
Can I set how the page feels?
Yes. Change the grid. Mix up to three fonts and five colors. Use digits or a short alphabet as the fill. Print a tight grid for extra practice and a wider grid for the long page.
What files do I get?
A puzzle image and a matching solution image per puzzle, as JPG, PNG, or transparent PNG. All Words prints one grid per usable word. Instant Puzzle Books stacks those pairs into a letterbox puzzle book interior.
What does Productivity add?
Time Saver: several word-list files, each with its own grid and quantity, run in one batch, then several collections in one book. You may also sell or supply the puzzles you generate to other publishers and sellers.
Can I sell the finished books and worksheets I create?
Yes. Letterbox lets you sell the finished books, worksheets, and printables you make to your own readers and customers. Letterbox Productivity includes that, plus you may sell or supply the puzzles you generate to other publishers and sellers.
Do I need the internet to create?
No. You create on your Windows PC.
Your next Instant Puzzle Books job can add a letterbox title beside the word books you already ship. Your list is the hidden word. The fonts and the fill are what Look Inside shows. Try the free demo. Then choose Letterbox or Letterbox Productivity at the top of this page.
Paste the list. Export the crowded grid plus the matching key for the back of the book. Try the free demo, then pick Letterbox or Letterbox Productivity at the top of this page.
