You can take a long (full‑page) screenshot on an iPhone in Safari and a few other apps by using the built‑in “Full Page” screenshot option that turns your regular screenshot into a scrollable image or PDF.

Quick method (Safari / supported apps)

  1. Open the page or document you want to capture (for example, in Safari , Mail, or Notes).
  1. Take a normal screenshot:
    • Press the Side button + Volume Up button at the same time.
  1. When the screenshot thumbnail appears in the bottom‑left, tap it quickly (it disappears after a few seconds).
  1. At the top of the editor, tap “Full Page” (instead of “Screen”).
  1. You can scroll the preview to trim the start/end of the long screenshot, then tap Done and choose Save to Photos or Save PDF to Files.

This gives you one continuous image or PDF of the entire page, not just what fits on screen.

How to capture long screenshots in any app (Messages, WhatsApp, etc.)

Apple’s built‑in long‑screenshot feature only works in a few apps like Safari, Mail, and Notes. To capture long chats or feeds (e.g., Messages, WhatsApp, Instagram, Reddit), you can use:

  • Third‑party apps such as Stitch or similar “scrolling screenshot” tools that stitch together a screen‑recording of you scrolling.
  • Or screen‑record while scrolling , then use a stitching app to convert the video into one long image.

Quick‑reference table

Use case| Method on iPhone
---|---
Long webpage in Safari| Regular screenshot → tap thumbnail → choose Full Page → Done → Save. 16
Long email or note| Same as above, in Mail or Notes. 16
Long chat (Messages, WhatsApp)| Use a scrolling‑screenshot app (e.g., Stitch) via Screen Recording. 59
Any app not supporting “Full Page”| Screen‑record while scrolling, then stitch into a long image. 58

If you tell me your iPhone model and iOS version , I can give you steps tailored exactly to your device.