How do you turn an iPhone screen recording into a PDF?

What the conversion actually involves

“Video to PDF” sounds like a format change. It isn’t. A video is a stream of frames; a guide is a handful of moments. The real work is deciding which frames matter.

That breaks into three questions:

1. Where does each step start? A ten-second recording through four screens holds four steps, but nothing in the file marks them. You find them by spotting when the picture changed from one settled state to another.

2. Which frame shows each step? Not the first frame after the change. That one is mid-animation, and the screenshot comes out smeared. The right frame comes from the middle of the still stretch, after the screen stopped moving.

3. How do frames become pages? A tall phone screenshot on a Letter page leaves most of the width empty. The layout has to fill that space with the step number, the instruction and clean white space.

Doing it on the phone

Walkthru answers all three on the device.

It reads the recording frame by frame and cuts where the picture changed and then settled. It filters out some small or repeating changes. Live-updating content, such as a timer, can still add an extra step, so review the result and remove, split or reorder steps.

For each step, it takes a full-resolution frame from the middle of the still stretch. You get a guide with one step per screen, each labelled with the kind of change: a new screen, a scroll, typing, a dialog. Then you write, mark, cover and export.

iPad recordings work the same way. An iPad-shaped screenshot keeps its shape on the page.

The three PDF layouts

Layout	Best for	What a page holds
One step per page	Following along on a screen while doing the task	A large screenshot, the step number, the instruction
Compact	Printing, or a long guide someone skims	Several steps per page, screenshots scaled down
Checklist	Onboarding, audits, anything with a tick box	Step text with a box and a small screenshot

Choose US Letter, A4, or an automatic option that follows your region. A cover page and bookmarks are optional. Past about fifteen steps, bookmarks are what make the guide easy to move around.

What gets drawn in

Markers, crops and redactions are drawn into the exported picture. They are not separate layers a PDF reader could switch off. For redaction, that is the point: the covered pixels are gone from the exported file, so a recipient cannot recover them.

Covers are drawn before the crop, so a crop is never what hides a detail. This applies to the export. The editable guide keeps your original screenshots, and your source recording and Photos library stay as they were.

When you get too many or too few steps

Step detection is a starting point. It sees visual changes, so loading screens, scrolling and a changing keyboard can add steps you do not need. Several taps on a screen that barely changes may need more explanation than one step gives.

What you see	What to do
An extra step showing a spinner or a passing state	Delete it, then check the steps around it still connect.
One step holds two important decisions	Split the step, then use Replace screenshot to choose the right frame for each half.
A screenshot caught the screen mid-animation	Use Replace screenshot to choose a clearer frame, or Replace from Photos with a real screenshot.
The right picture has no instruction	Write the action and what should happen. Walkthru finds steps; it does not write them.
The PDF is readable only when zoomed in	Try one step per page, and check any crop before exporting again.

Aim for one clear action or decision per step, not one page per tap. Typing a short return reason may be one instruction, even though it takes many taps. The confirmation that follows deserves its own step, because it is a separate decision with a visible result.

An example: a return request

Record from the order list to the final confirmation. Review the steps Walkthru found, then write instructions such as “Open the order”, “Choose the item”, “Describe the problem” and “Review and send the request”. End with what success looks like: the return-started screen.

See the site’s real return walkthrough for how the recording, the chosen frames and the finished guide relate. It shows the output, not how long your own guide will take.

The free way: do it by hand

In iOS 27, play the recording in Photos, pause on each screen you want, tap the More button and choose Save Video Frame as Photo (Apple’s instructions). For a plain PDF of those pictures, save them to Files, select them and choose Create PDF. For instructions, place them in a document app such as Pages, write a step under each picture and export that as a PDF.

You control the layout, but you pick, order and maintain every picture yourself. If the screenshots already exist, start with turning screenshots into a guide. If you only need the pictures, see getting screenshots out of a screen recording.

Whichever way you make it, open the PDF before you send it. Check the first and last steps, the smallest label, the instructions and every private detail. The exported file is what the reader gets.