A lead magnet has an unusual job: it is given away, so it has no price to justify, and the only thing it can be judged on is whether it was worth the exchange. Most fail quietly. They are downloaded, glanced at, and left in a downloads folder — and the person who wanted the guide now associates your name with something they did not read.
The fixable causes are mostly not about the writing.
Length: shorter than you want it to be
The instinct is to demonstrate value through volume, so a promise that could be kept in six pages becomes a forty-page "ultimate guide". Forty pages is a book, and nobody agreed to read a book in exchange for an email address.
Eight to fifteen pages is the range that gets finished. Under eight and it can feel thin unless it is exceptionally dense; over twenty and the completion rate falls off sharply.
If your material genuinely needs forty pages, that is a good sign — but it should be the thing you sell, and the lead magnet should be one useful chapter of it.
The first page has to stand alone
Assume page one is the only page most people see. That is close enough to true to design around.
So do not spend it on a title, your logo, and a paragraph about yourself. Put something usable there: the checklist, the summary, the one insight the whole document is built on. If they read only that and it helped, you have kept the bargain, and the rest of the document is a bonus rather than a debt.
Structure for a ninety-second skim
People skim first, then decide whether to read. If the skim yields nothing, there is no second pass.
- Headings that say something. "Set your margins to at least 20mm" beats "Margins" — the skimmer gets the point without stopping.
- One idea per page, where the material allows it. Page boundaries are natural chapter markers in a short document.
- Something scannable every page or two — a list, a table, a pulled-out sentence. Solid prose for six pages reads as work.
- No table of contents under fifteen pages. It costs a page and helps nobody at that length.
Production is most of the first impression
This is the part people underinvest in, and it is the part that gets judged first, before a word is read.
A PDF that came out of a word processor with default margins, a default typeface and no cover reads as *provisional* — like something typed rather than made. That impression transfers to the advice inside it, fairly or not. The reader is not consciously evaluating your typography; they are deciding, in about two seconds, how much care went into this, and typography is the only evidence available.
The details that carry the most weight for the least effort:
- Margins wider than the default. The single biggest change, and it costs nothing. Generous margins read as confidence.
- A typeface that is not the default. Almost anything chosen deliberately beats the one that was already selected.
- A real cover. One page: the title, who it is for, your name. It is what shows as the thumbnail everywhere the file appears.
- Page numbers. Small, and their absence is noticeable in a way nobody can name.
- Deliberate page breaks. A heading stranded alone at the foot of a page is the clearest possible signal that nobody looked at the finished file.
Six typography decisions covers the numbers behind these if you want the reasoning rather than the rules.
The ending is a real page
Someone who reaches the last page has read the whole thing. That is the most engaged person in your audience and the moment is usually wasted on a full-page advertisement.
Better: a short summary of what was covered, then one specific next step. One. A page offering four options gets none of them taken.
PDF or EPUB for this?
PDF, almost always. Lead magnets are opened on laptops far more often than on e-readers, the fixed layout is doing real work when the document is short and visual, and a PDF is a single file anyone can open without thinking about it. EPUB is the right choice when the text should reflow — for a long prose read, not a twelve-page guide.
A workable process
- Write it in plain text. Do not think about design while writing — it is the fastest way to stop writing.
- Cut it by a third. This is not a figure of speech; the version that gets finished is shorter than the one you drafted.
- Move the most useful thing to page one.
- Set the design once — typefaces, margins, page numbers — and save it, so the next one starts there.
- Export, and read the finished file end to end on a screen you did not write it on.
That last step catches the stranded headings, the table that lost its header and the page-two paragraph that should have been page one. It takes five minutes and it is the difference between a document you made and one you checked.
If step four sounds like the tedious one — it is, the first time. In bukpress the design is a handful of controls, and the free plan does twenty exports a month with no watermark — more lead magnets than most people ship in a year. Saving a look as a reusable Brand Kit so the next guide starts from it is on the Essentials plan and up; see pricing.