Kdan Mobile PDF Reader

The best pdf editor for all your devices

★★★★★ 5.0/5
FactScore™ 15.1
VS

OpenSign™

Enterprise-Level Document Signing Goes Open-Source

★★★★☆ 4.0/5
FactScore™ 19.1

Updated June 2026

Kdan Mobile PDF Reader OpenSign™
Rating 5.0★ 4.0★
Reviews 1 2
Pros 0 0
FactScore™ 15.1 19.1

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

15.1
Kdan Mobile PDF Reader FactScore™
👑
19.1
OpenSign™ FactScore™
★ OpenSign™ wins on FactScore™

Pros & Cons

Only in Kdan Mobile PDF Reader — Pros

No unique pros listed

Both tools — Pros

Only in OpenSign™ — Pros

No unique pros listed

Only in Kdan Mobile PDF Reader — Cons

Both tools — Cons

Only in OpenSign™ — Cons

Details

Kdan Mobile PDF Reader OpenSign™
Categories Productivity, PDF Editor, E-signature apps File storage and sharing apps, PDF Editor, E-signature apps
Platforms Web · iOS · Android Web
Added April 7, 2020 October 26, 2023
Website www.kdanmobile.com www.opensignlabs.com

Who Should Pick Which?

Choose Kdan Mobile PDF Reader if...

  • No unique pros listed

Choose OpenSign™ if...

  • No unique pros listed

With a FactScore™ of 15.1 vs 19.1, OpenSign™ leads in community reception. Kdan Mobile PDF Reader uniquely offers No unique pros listed, while OpenSign™ stands out for No unique pros listed.

3

What Users Say

Kdan Mobile PDF Reader

奈保一切都很好 Oct 26, 2024
★★★★★

Love using this reader on the go. I’m able to do so much work outside of office with this app - add signatures, convert documents and fax when necessary. A great tool to have.

OpenSign™

K
kelvin Sep 30, 2024
★★★★☆

I work as a freelancer, and one of my clients uses this tool for digitally signing all agreements between us. I decided to give it a try as well, and what I like most is how affordable it is while ...

N
Note Sep 10, 2024
★★★★☆

The best digital signing solution, with a simple user interface that I really like. It also offers a self-hosting feature that other alternative tools don't provide.

Frequently Asked Questions

Which is better, Kdan Mobile PDF Reader or OpenSign™?

Based on FactScore™, OpenSign™ leads with a score of 19.1 vs 15.1. OpenSign™ has a higher rating of 4.0★ compared to 5.0★.

What are the pros of Kdan Mobile PDF Reader compared to OpenSign™?

Kdan Mobile PDF Reader uniquely offers: No unique pros listed.

What are the pros of OpenSign™ compared to Kdan Mobile PDF Reader?

OpenSign™ uniquely offers: No unique pros listed.

Is Kdan Mobile PDF Reader better rated than OpenSign™?

Kdan Mobile PDF Reader is rated 5.0★ from 1 reviews. OpenSign™ is rated 4.0★ from 2 reviews.

What is the FactScore™ of Kdan Mobile PDF Reader and OpenSign™?

FactScore™ weighs rating and review volume together. Kdan Mobile PDF Reader scores 15.1 and OpenSign™ scores 19.1.

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