Annotate

Write where you're reading

Other readers send you back to the PDF every time you want to mark something. In Rectoly, highlights, underlines, sticky notes and Apple Pencil handwriting go straight onto the reflowed text.

Writing on a paper's figure with Apple Pencil in Rectoly on iPad
How it works

See it in use

01

Mark it as you read

Highlight, underline and add sticky notes on the Reading Mode text. Each annotation is placed at its real position in the PDF, so it is an ordinary annotation.

Highlighting and underlining text in Reading Mode
02

Your thinking, in the margin

Circle a figure or write a question in the margin with Apple Pencil. It writes like the iPad's own pen, and your palm resting on the screen draws nothing.

Handwritten notes in a paper's margin with Apple Pencil
03

Find it later by what you wrote

Rectoly reads your Apple Pencil handwriting on the device and uses it to search your library and the PDF. It becomes searchable seconds after you write, and what it reads never leaves the device.

Searching papers by handwritten words
04

Annotations go back to your library

Highlights and notes sync to Mendeley or Zotero as ordinary annotations. In the Zotero edition, handwriting on the PDF page syncs too, as Zotero ink annotations you'll see in Zotero on the desktop.

Annotations made on the iPad syncing to the library
When you'd use it

Where it fits in your day

Reviewing a manuscript

Circle what matters, comment in a sticky note

The printout and red pen, replaced by one iPad.

On the way to a conference

Mark up the paper before the talk

Jot the questions you want to ask in the margin, with the iPad on your knee.

Weeks later

Find “that note on the figure” by its words

Search for what you wrote and it turns up — even if you've forgotten which paper or page it was on.

The details

Filter by colour and type
Narrow the annotation list by colour, or by kind: highlight, underline, sticky note, handwriting.
Handwriting in Reading Mode
In Reading Mode, handwriting follows the reflowed text. For marks that must stay at an exact spot, write on the PDF page.
Handwriting search requirements
iPadOS 27 or later. Vertical handwriting is recognised too. Turn it off in Settings and what was read is deleted.
Handwriting backup
Handwriting is backed up to iCloud with earlier versions you can restore, and can be exported as JSON.
Handwriting in the Mendeley edition
Mendeley's annotations have no handwriting type, so handwriting doesn't appear in Mendeley itself. It does appear on every device running Rectoly.
Across papers
See the annotations of every paper in one list. Free on iPad and iPhone.

Every feature, free for 14 days

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