# iPad Version Help
# Table of Contents
# Differences between iPad and Desktop
ivySCI provides an iPad version and a desktop version (supports Mac and Windows), using the same account to log in, allowing you to access literature and notes anytime, anywhere.
The desktop version of ivySCI provides powerful features such as automatic literature import, retrieval, management, reading, note-taking, and tag management. Every user should install the desktop version to handle literature information more efficiently. To download the desktop version, please visit https://www.ivysci.com on your computer.
The iPad version serves as an extension of the desktop version, helping you read papers on the go and in fragmented time. With the Apple Pencil, users can write notes on the iPad, make annotations freely, and these data will be automatically synchronized to the desktop version. If you are using the iPad version and facing an empty project (no files), we recommend that you immediately download the desktop version and import PDF files from the desktop version. They will be synchronized to your iPad immediately.
# Basic Functions on the Home Page
# Reading Function
# How to Take Notes
After selecting a piece of text by long-pressing, click the pen button. By default, it will add a yellow highlight. Tap on the highlight, and a highlight card will pop up on the right side. You can add notes and tags in the card.
# How to Delete Highlights
Tap once on the highlight you want to delete, and a note card will pop up on the right side. Click the trash can icon in the upper right corner of the card to delete it.
# Long-Press to Look Up Words
You can select a word by long-pressing, and it will invoke the iOS system dictionary. You can configure the dictionary in the system settings. The default configuration may be in English, but you can configure it to English-Chinese dictionary.
# How to Delete Literature
# About Handwriting on iPad
Although iPad supports handwriting, we do not encourage users to write too many annotations because handwritten content cannot be indexed and cannot be used in the Word plugin ivyCite.
In other words, the annotations you write on the iPad can only be seen when you open the PDF and are not convenient for reference during academic writing.
This is similar to traditional PDF annotations and is not suitable for academic writing. We recommend you read the following article: Do you know how considerate ivySCI is compared to EndNote? (opens new window)
# Common Issues on iPad
- Can't write by hand on iPad?
This situation is usually because the PDF file is write-protected. Write-protected files cannot be operated on the iPad and you will not see any handwriting. However, the desktop version is not affected because the mechanism of the desktop version does not write to the PDF.