LightPDF
A free, simple PDF toolkit for Windows, Mac, Android and iOS
UI Sources
Mobile Design Patterns and Interactions
Updated February 2026
| LightPDF | UI Sources | |
|---|---|---|
| Rating | 5.0★ | 4.5★ |
| Reviews | 11 | 2 |
| Pros | 20 | 0 |
| FactScore™ | 54 | 21.5 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in LightPDF — Pros
Conversion tools Editing tools Intuitive interface Fast performance High-quality output AI-powered features Annotation tools Excellent customer support OCR support Secure file processing Batch processing Free tier Multi-platform support Wide range of file formats Document management No registration required Collaboration capabilities E-signatures Fillable PDF forms Password protectionBoth tools — Pros
—Only in UI Sources — Pros
No unique pros listedOnly in LightPDF — Cons
—Both tools — Cons
—Only in UI Sources — Cons
—Details
| LightPDF | UI Sources | |
|---|---|---|
| Categories | Productivity, Design & Creative | Design & Creative, Mobile editing apps, Design inspiration websites |
| Platforms | Web · iOS · Android | Web |
| Became Popular | January 24, 2018 | July 30, 2018 |
| Website | lightpdf.com | www.uisources.com |
Who Should Pick Which?
Choose LightPDF if...
- Conversion tools
- Editing tools
- Intuitive interface
Choose UI Sources if...
- No unique pros listed
With a FactScore™ of 54 vs 21.5, LightPDF leads in community reception. LightPDF uniquely offers Conversion tools and Editing tools, while UI Sources stands out for No unique pros listed.
What Users Say
LightPDF
Thank you so much, LightPDF is doing wonders!
I've been using LightPDF recently and am impressed with all the tools it offers for working with PDF files. This free and secure platform has features that go far beyond the basics: from conversion...
nmatched in its ability to edit PDFs, allowing you to modify text, images, and layouts seamlessly. Excel files can be converted to PDFs and vice versa, retaining full formatting, including tables a...
UI Sources
Great library to get inspiration and understand more about user journey, they even had videos of user going through the app helping you understand the users POV
Even though the category-wise view is paid, every listing is free. The screenshots are properly divided into flows. Videos are currently unavailable.
Related Comparisons
Frequently Asked Questions
Which is better, LightPDF or UI Sources?
Based on FactScore™, LightPDF leads with a score of 54 vs 21.5. LightPDF has a higher rating of 5.0★ compared to 4.5★.
What are the pros of LightPDF compared to UI Sources?
LightPDF uniquely offers: Conversion tools, Editing tools, Intuitive interface, Fast performance, High-quality output.
What are the pros of UI Sources compared to LightPDF?
UI Sources uniquely offers: No unique pros listed.
Is LightPDF better rated than UI Sources?
LightPDF is rated 5.0★ from 11 reviews. UI Sources is rated 4.5★ from 2 reviews.
What is the FactScore™ of LightPDF and UI Sources?
FactScore™ weighs rating and review volume together. LightPDF scores 54 and UI Sources scores 21.5.
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