The Reality of Booklet Printing
Most people think making a booklet is just flipping a document and hitting print. It isn't. You'll waste paper and money fast if you don't understand what's actually happening when a printer makes a signature. A booklet isn't a single sheet printed front and back. When you fold a large sheet in half, the pages rearrange themselves into what printers call a signature. A 16-page booklet made from four sheets needs page 1 next to page 16 on the same physical side of the paper. Page 2 sits opposite page 15. This isn't intuitive unless you've physically folded paper before, which you should do once with a regular A4 sheet to see what I mean. Here's where people mess up: they design the document sequentially like a normal document and expect it to work. It won't. The pages will print in the wrong order and you'll have to figure out what went wrong after the fact, usually while staring at a pile of garbage.
How To Make A Booklet Using Your Existing Software
You have two paths here. Path one is doing it natively in your word processor. Path two is letting a dedicated tool handle the imposition for you. I'll walk through both because they serve different situations. Microsoft Word method: Go to Layout > Margins > Mirror Margins. This sets up inside and outside margins so text doesn't disappear into the fold. Then go to Page Setup > Multiple pages > Book fold. Word will automatically reorder your pages into the correct imposition. If your document is 16 pages, Word creates a 4-page spread. Set your page count accordingly before you start, because changing it mid-document breaks everything. PDF method: Open your final PDF in Adobe Acrobat Pro. File > Print > Choose "Booklet" as the paper handling option. Acrobat handles the imposition. This is faster and more reliable for complex layouts because it works with the final exported file rather than the source document. But it only works with Acrobat Pro. The free Reader version doesn't have this capability.
LibreOffice method: Go to File > Print > Select your printer > Properties > Layout > Booklet. LibreOffice handles imposition automatically and it's free. Not as polished as Acrobat but functional.
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The Paper Problem Nobody Warns You About
I learned this the hard way. I once printed 200 booklets on 80gsm copy paper for a community workshop. The paper was thin enough that ink bled through to the other side, and the folded spine cracked after people flipped through it twice. Each booklet looked terrible. I ended up reordering 250gsm card stock from a local supplier at double the cost because I needed them same day. The workaround would have been simple if I'd thought about it beforehand: test print one copy on your actual paper before committing to the full run. Five minutes of testing saved me three hundred dollars and two days of work. Paper weight matters more than you'd think. Anything below 90gsm will show content bleeding through on the reverse side unless you're only using black text with minimal coverage. Standard copy paper at 80gsm is fine for internal documents but looks unprofessional for anything handed to clients or customers. 100 to 120gsm is the sweet spot for most booklets up to about 32 pages. Beyond that and the spine becomes too thick to fold cleanly without specialized equipment.
Page Count Rules You Need to Know
Booklet page counts must always be multiples of four. Four pages minimum. Eight. Twelve. Sixteen. This isn't a suggestion, it's physics. When you fold a sheet, you get four page surfaces. If your content doesn't divide evenly into fours, you add blank pages until it does. Word and Acrobat will do this automatically but you should verify the final output before printing. There's an edge case that catches people out. If your document has, say, 14 pages, the software adds two blank pages to make 16. Those blank pages end up at the very beginning and very end of the booklet. Sometimes that's fine. Sometimes it's a problem if you're printing on pre-printed letterhead or branded paper where blank pages would show company branding on the inside cover. I've had to rebuild documents from scratch because someone printed 500 booklets on company-branded paper and the blank back pages showed the logo when opened. Worth checking.
When You Shouldn't Make a Booklet
Single-page handouts are simpler. If you only need one sheet folded once, that's technically a pamphlet, not a booklet. Use a different template. Booklets become impractical past about 64 pages because the spine gets too thick for a simple saddle stitch fold. At that point you need perfect binding, which requires a professional printer. The home printer approach breaks down around 40 pages with standard copier paper. Beyond that the folds stress out and the pages start falling out. Also, digital distribution makes physical booklets pointless in some cases. If the audience is accessing this on screens anyway, a properly formatted PDF is cleaner and free to distribute. I stopped making physical booklets for internal tech documentation entirely after realizing most people never opened them. The PDF link in the email got 97 percent of the views.

The Quick Reference
Design your document with mirror margins from the start. Keep page counts at multiples of four. Test print one copy on your actual paper before the full run. Use 100 to 120gsm paper for anything that needs to look decent. If you're over 40 pages, talk to a professional printer instead of fighting your home machine. And for God's sake, check the imposition on that test print by actually folding it before you commit to the whole batch.