I lost all my mark up on a pdf !

Response : IcanSing66 ; PDF Markup ✍️

Check : settings > Safari > downloads > iCloud Drive or iPad . Check the Books App . If you have a desktop , check in the iCloud Drive in there . If you worked offline , your changes will upload when you're back online . In the Pages App > … tap 3 dots in a circle upper right > settings > editing

> open in edit view . If edit is black , tap it for editing .

That's all that I can think of , good luck .

Forget the free Apple iOS/iPadOS Notes app and its markup feature/s.

The free iOS/iPadOS Notes apps is notoriously unreliable and unstable and Apple ONLY updates the iOS/iPadOS Notes app once a year, when a new iOS/iPadOS version is released.

The Apple iOS/iPadOS Notes app and its markup tools are very basic barebones with little to no advanced features that has proven itself very unreliable over very many years this app has existed.

You will be better off and have much better piece of mind and security by looking for other free or paid iOS/iPadOS Notes apps, that are more reliable, support more third party data backup services and get A WHOLE MORE regular app updates than Apple’s iOS/iPadOS Notes app ever does.

Here is an incomplete list of notes/note taking apps you may wish/want to look at,that are reliable, more robust and feature-rich, that have been around for, at least, 5 years, or more, and are notes apps that recieve a slew of regular app updates.

Many are one-time pay or have a small monthly subsctiption. Some in my list, maybe free.

You are better using a Notes app that has been more fully developed over the years that have few,,if any, reliability issues.

In no particular order.

CollaNote ( free )

Good Notes

INKredible

Liquid Text

Margin Note 3

Microsoft One note

Nebo

Notability

Notepad+/Notrpad+ Pro

NoteShelf 2

Notes Plus

Notes Writer/(Pro)

Notebook

Pen Note

PDF Pro 4

Quick Notes X Pro

Zoom Notes

Best of Luck to You!