Showing results for 
Search instead for 
Did you mean: 
Regular Visitor

Signature from PenInput into a PDF?

Hi everyone,


im stuck on creating a power automate flow that gets a new sharepoint item (name, date, signature etc) and converts it into a PDF.

I’ve got the conversion to PDF working fine using the Populate a word document / Convert a word document steps.

it’s the signature from the PowerApp penInput I can’t get!

I can see it as an image (thumbnail) in my SP list, but I just can’t get it to convert into a file that gets added to the PDF


Surely there has to be a simple way.


so my flow is triggered : when a new Sharepoint item is created.

all Dynamic fields are fine.


help would be greatly appreciated



Regular Visitor

That's what i'm asking help on.

The peninput is writing to a SharePoint list column named SIGNATUREIMAGELINK and is displaying content in the SPO list like this (see attached).





Most Valuable Professional
Most Valuable Professional

@Smorley80 ,

That is not going to work (I am glad you have finally posted that or we would have gone in circles a bit longer) - it refers to an internal Power Apps storage value that is only valid in Power Apps in the current session and cannot be used for anything else. You need to go back to my blog section, use JSON to convert the actual image content and then store that in a multi-line text column, then use base64ToBinary on that field content in the Flow for the OneDrive file content.

thanks for the response. I'm just not understanding your suggestions sorry. I will find a solution somewhere else.

I'm not wanting to use a flow from within powerapps, I would prefer to trigger the flow when i hit SUBMIT as I want to keep a list of items in sharepoint.

Most Valuable Professional
Most Valuable Professional

@Smorley80 ,

We have now spent 14 items on this thread - I can assure you it can be easily done. The JSON code in my blog can be saved in a Multi-line Text column as you are now, then Base64ToBinary used in the Flow as per the blog applied to that field output rather than CreateFile_FileContent. If you have a go, I am happy to correct it.

Regular Visitor

@WarrenBelz Mate, I am trying.


What might be easier if you could answer these:


1. Am I best to trigger the flow from within the powerapp? or seperately when a new SPO Item is created?

2. Where do i add that JSON code to convert the pen input image? in the Pen Input? or do i add it to the SUBMIT button. All I have on the ONSELECT of SUBMIT is:




Your blog shows using the 'Ask in Powerapps' options, which If possible, I'd prefer not to use as it seems to keep breaking.


Most Valuable Professional
Most Valuable Professional

@Smorley80 ,

OK - I think we need to regroup here a bit to look at two very different options.

Firstly you need a Premium connector for the Word merge and it is possible using the PowerAppsV2 Flow connector to run with elevated privileges (so you only need one licence), but this is a more complex process, so for the moment we will stick with your current process of using a SharePoint new record.

I am not aware of your current skill level here, so please excuse me if some of this is stating the obvious.

The main thing you need to do here is save the JSON content into your Multi-line Text field - there are several ways of doing this including a Patch, but sticking with your SubmitForm, add this

            ) + 1,
            Len(wJSON) - Find(
            ) - 1

then include your Multiline Text field on the Form (you can hide it) with the Update


 Now to your Flow - your field name needs to go where highlighted in the Expression



Please have a go at this - I do literally dozens of these across multiple forms with multiple signatures every day.


Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications)   Visit my blog Practical Power Apps


THanks Warren, my skill level is beginner / intermediate. I can create apps and have forms submitted etc.. the signature capture has always eluded me.


ok almost there.

The Error I am now getting is:


The file id '/SignTemp.jpg' is not valid.


1. I have added the code you provided to my powerapp ONSELECT .

2. My PENINPUT card updates my multilinetextfield.

2a. My MultilineTextfield , named SIGNATURELINK, has its UPDATE Property set to 'varPen'..   is that correct?


My Flow now looks the same as yours, but am getting this error (attached).

I have tried using a dynamic content for the name.jpg and changed the folder path.

my 'file content expression is: 

My GET FILE CONTENT 'file' is set to PATH from the CREATE FILE 2 action.




Most Valuable Professional
Most Valuable Professional

@Smorley80 ,

Can you show me your actual Flow - mine runs fine


Also go into your OneDrive and see if the file is there and you can open it.



I was using GET FILE instead of GET FILE CONTENT!

So very grateful @WarrenBelz for your patience, it is very much appreciated!

Helpful resources


Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started:   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!      

Tuesday Tip | How to Report Spam in Our Community

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Community Roundup: A Look Back at Our Last 10 Tuesday Tips

As we continue to grow and learn together, it's important to reflect on the valuable insights we've shared. For today's #TuesdayTip, we're excited to take a moment to look back at the last 10 tips we've shared in case you missed any or want to revisit them. Thanks for your incredible support for this series--we're so glad it was able to help so many of you navigate your community experience!   Getting Started in the Community An overview of everything you need to know about navigating the community on one page!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Ranks and YOU Have you ever wondered how your fellow community members ascend the ranks within our community? We explain everything about ranks and how to achieve points so you can climb up in the rankings! Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Powering Up Your Community Profile Your Community User Profile is how the Community knows you--so it's essential that it works the way you need it to! From changing your username to updating contact information, this Knowledge Base Article is your best resource for powering up your profile. Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Community Blogs--A Great Place to Start There's so much you'll discover in the Community Blogs, and we hope you'll check them out today!  Community Links: ○ Power Apps ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Unlocking Community Achievements and Earning Badges Across the Communities, you'll see badges on users profile that recognize and reward their engagement and contributions. Check out some details on Community badges--and find out more in the detailed link at the end of the article! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio    Blogging in the Community Interested in blogging? Everything you need to know on writing blogs in our four communities! Get started blogging across the Power Platform communities today! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Subscriptions & Notifications We don't want you to miss a thing in the community! Read all about how to subscribe to sections of our forums and how to setup your notifications! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Getting Started with Private Messages & Macros Do you want to enhance your communication in the Community and streamline your interactions? One of the best ways to do this is to ensure you are using Private Messaging--and the ever-handy macros that are available to you as a Community member! Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Community User Groups Learn everything about being part of, starting, or leading a User Group in the Power Platform Community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Update Your Community Profile Today! Keep your community profile up to date which is essential for staying connected and engaged with the community. Community Links: ○ Power Apps  ○ Power Automate  ○ Power Pages  ○ Copilot Studio   Thank you for being an integral part of our journey.   Here's to many more Tuesday Tips as we pave the way for a brighter, more connected future! As always, watch the News & Announcements for the next set of tips, coming soon!

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today!  

Top Solution Authors
Top Kudoed Authors
Users online (3,634)