Skip to main content
Latest news: [[ newestAnnouncement.title ]] Learn more
InVision Support Home Page
Sign in
InVision ambassador ambassador
Chaitanya Shah
Chaitanya Shah Updated

Freehand Zooms to 0 or NaN

Hi Team, Thank you for the powerful Freehand app. I tried to get onboard with the Freehand app, and it gave me hard time on Apple iPad as well as on Desktop web. Somehow, after spending good amount of jotting, the zoom level went to 0. Boom! And all my work is just gone. I was unable to recenter my work. Seems like it lost in the infinite whitespace. Setting zoom level back to 100, was in vain. In other scenario, while using the app on iPad Pro with Pencil, I don't know by what kind of gesture or action, but the screen just went white. No zoom control on the iPad. Upon loading the same board on the desktop I was seeing NaN zoom level. In either case, if the zoom goes to 0%, the whole board is useless and the work is simply gone. What do you suggest here? Best, Chait

This post is associated with a known feature request: [[ problemTicketSubject ]]. Let our Product team know that you’re interested in this feature.

Sign in to add your vote

Thanks for taking the time to share your feedback about making our product better. We’ve let our Product team know that you’re interested in this feature so they can factor that into their product strategy.



Sort by

Raynor B
InVision ambassador Raynor B , InVision Employee , ambassador

Hi Chaitanya,

Thanks for reaching out to our Community! I'm sorry to hear that you're having trouble with your Freehand. 

I can see that you already have a post and ticket about support for the Apple Pencil, and have had your vote added to the feature request for this. Unfortunately, since Apple Pencil is not officially supported yet, you may continue to encounter issues when using it. 

However, to help us troubleshoot these other issues further, I'd like to gather some more details. 

  • Could you please send through some screenshots or a screen recording showing this issue occurring, especially of the NaN value, and any error messages you might see?
  • On the desktop, if you try accessing this via a private/incognito window, does the issue persist? 
  • Could you please confirm your browser and OS details by going to, clicking the “Copy” button, and pasting the link it gives you into your reply?
  • Could you please confirm which particular model of iPad and which version of OS it's running? Is this occurring in the mobile browser or the InVision app (if so, which version)?

Looking forward to hearing back from you!



Chaitanya Shah
InVision ambassador Chaitanya Shah , ambassador


Sure! Here are some further helpful details: 

- Browser and OS Details :

- iPad Pro 2017 10' model running iOS 14.4. It has happened on both browser as well as InVision's latest App. 

Raynor B
InVision ambassador Raynor B , InVision Employee , ambassador

Hi Chaitanya,

Thanks for getting back to me with those details!

I’ll be opening a ticket on your behalf with our Support team so they can dig into this further with you internally. Please keep an eye out for an email from one of our Support agents soon.

I apologize for any frustration and disruption that this issue is causing you, and we'll look forward to assisting you via the ticket. 


InVision ambassador joseph , ambassador

The availability of low-cost and flexible tracking systems for hand and body movements is increasing.
With this, more thorough investigations for more natural and efficient physical interaction styles are
required which take particular limitations of such systems into account, such as the limited ability to
track individual fingers. To contribute to this, we describe an investigation of basic hand gestures for
the exploration of large information spaces. A set of four pan-and-zoom alternatives using two-handed
gestural controls have been implemented and compared using Google Earth as an example. For this we
conducted a small-scaled formative user study with nine participants to fundamentally assess users'
acceptance and the qualification of these freehand gestures for pan-and-zoom operations. As a result, a
simple forward and backward hand movement for zooming and a joystick metaphor for panning
yielded in the best overall results. Especially the seamless integration of continuous pan and zoom was
positively highlighted by participants.


join the conversation

To comment, sign up or sign in.