Lumin PDF 4+

View. Edit. Share‪.‬

Nitrolabs Limited

Designed for iPad

    • 2.4 • 100 Ratings
    • Free



Manually printing and scanning documentation is a thing of the past with our PDF editor in your back pocket.

Upload your documents straight from your phone’s storage or import directly from the storage platforms you love like Google Drive and Dropbox. Use our pdf annotation features to add text, comment or sign documents straight from the app.

Whether it’s a contract that needs approval or a form that needs annotating, manual processes won’t slow you down. Our features work just how you’d expect them to and integrate seamlessly with Google.

Our app's core function is the ability to upload and edit PDF documents. All your updates will automatically sync within your Lumin account, so you can pick up where you left off when you switch to desktop.

Key features include:
- Comment on or annotate PDF documents
- Upload documents via Dropbox, Google Drive or your phone storage
- Share documents with anyone, anywhere, anytime
- Documents are automatically saved in the Cloud
- Real-time sync, so you can switch between desktop and mobile with ease.

Terms & Conditions:

For more information on Lumin PDF, head to

What’s New

Version 2.4.10

Update your app to version 2.4.10 today to get rid of pesky bugs

Ratings and Reviews

2.4 out of 5
100 Ratings

100 Ratings

meihawaii ,


This app has caused me so much frustration and tears. I’m using this on a mobile device and was hoping for an alternative to printing and filling out pages. Every time I try to save a PDF, my editing, gone. I only did a few sentences so I wouldn’t waste all my time just trying to figure it out. When I save the PDF, the preview just shows the page without any edits, and when I go to the Drive to see if it was just a preview issue, it wasn’t. I also can’t even use the “Open In” feature in Google Drive, I have to save my PDFs to Cloud in order to view them. Wish there were instructions, the website didn’t even help...

Developer Response ,

Hi meihawaii , We're sorry that you've experienced issues with this and know how important it is to be able to edit how and when you need to. If you're experiencing technical problems please email with more details so they can resolve your problem. If you'd like to check out all the editing features we offer, find out more here:

Mariebee21 ,

A teacher who used to love it, now worthless

I am school teacher who needs a way to project my documents to my Apple TV from my iPad to mainly annotate with a pencil or highlighter feature. This used to save me time from printing my document then taking a picture then use the editing feature in my photo app. Grabbing it straight from google docs was awesome, especially saving my work from the previous day. Now the new update doesn’t let me use a highlighter. Also, my TV is wide so I always use landscape even with portrait direction pdfs. It won’t let me change my mode to landscape when I turn my iPad landscape. It keeps my documents portrait so half 1/4 of my tv screen on the left and right is black and unused, making my font super small and hard to read. Paying a subscription is out of the question. Why can’t it be a one time fee? Guess I’ll have to use a different pdf app.

Developer Response ,

Hi there, we're sorry that you've experienced issues with this and know how important it is to be able to edit how and when you need to. If you're experiencing technical problems please email with more details so they can resolve your problem.

BriaDm ,

Not trust worthy

I started off using the app perfectly fine. Everything worked, few glitches here and there nothing to major. Until I was in the middle of Drivers Ed classes (final day pretty much so i already had a lot on the file i needed) and the app just stopped working. Could no longer see my study guide, the app would freeze and completely lock my screen. It deleted almost all of my work and i can still not recover any info i had written before. Worst time for it to have happened. Not trustworthy at all. I have a ton of missing info that I can not get back. Doing it through and browser and app has done absolutely nothing, I end up with the same results.

Developer Response ,

Hi BriaDm! Thanks for reaching these issues to us and we're very for the inconvenience. No worries, this will be passed on to the wider team to be checked. Also, Lumin PDF takes security very seriously that's why we've recently launched heightened role-based access control, multi-layer encryption, and we continuously auditing our system. You can learn more about some of our updates here: Please feel free to reach out to If you need assistance or guides in using the app. You can also visit our help center @ to check and look for helpful articles troubleshooting steps and guides related to the issues you've encountered.

App Privacy

The developer, Nitrolabs Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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