Compare Formstack Sign and pdfFiller 
At a Glance
Market Segments
Small-Business (85.4% of reviews)
Small-Business (82.4% of reviews)
Entry-Level Pricing
$20 per user per month
$8.00
Formstack Sign
Star Rating
(416)4.8 out of 5
Market Segments
Small-Business (85.4% of reviews)
Pros & Cons
Entry-Level Pricing
$20 per user per month
Browse all 3 pricing planspdfFiller
Star Rating
(796)4.6 out of 5
Market Segments
Small-Business (82.4% of reviews)
Pros & Cons
Entry-Level Pricing
$8.00
Browse all 3 pricing plansSummary
AI Generated Summary
AI-generated. Powered by real user reviews.
- G2 reviewers report that pdfFiller by airSlate excels in providing a comprehensive document management experience, with users praising its intuitive interface that allows for quick editing, filling, and sanitizing of PDF documents. This streamlined process is particularly beneficial for those managing multiple client accounts.
- Users say that Formstack Sign stands out for its user-friendly design, making it easy to gather signatures quickly. Reviewers appreciate how it transforms a process that used to take weeks into one that can be completed in hours, enhancing overall workflow efficiency.
- According to verified reviews, pdfFiller by airSlate has a higher overall G2 Score, indicating greater user satisfaction. Users highlight its ability to handle document generation, editing, and sharing all in one place, which is a significant advantage for those looking for an all-in-one solution.
- Reviewers mention that while Formstack Sign offers a secure and straightforward signing process, it has fewer recent reviews compared to pdfFiller by airSlate. This could suggest that users may have more consistent experiences with pdfFiller, given its higher volume of feedback.
- Users appreciate the robust support features of both platforms, but pdfFiller by airSlate receives slightly lower ratings in support quality. However, it still provides a solid experience, with users noting its quick implementation and effective onboarding process.
- G2 reviewers highlight that while both products are well-suited for small businesses, pdfFiller by airSlate offers a more affordable entry-level price, making it a more accessible option for startups and smaller teams looking to manage their document workflows efficiently.
Pricing
Entry-Level Pricing
Formstack Sign
Starter
$20
per user per month
Use for Basic eSignatures
- Unlimited eSignatures, documents, and templates
- 1 User
- Simple document setup
pdfFiller
Basic
$8.00
Fill and edit documents:
- Edit, draw, print, save and fax
- Erase and highlight
- Merge, re-arrange, and add pages
Free Trial
Formstack Sign
Free Trial is available
pdfFiller
Free Trial is available
Ratings
Meets Requirements
9.5
375
9.3
581
Ease of Use
9.6
378
9.1
589
Ease of Setup
9.4
232
9.2
244
Ease of Admin
9.6
214
9.2
233
Quality of Support
9.3
335
9.0
452
Has the product been a good partner in doing business?
9.5
223
9.4
223
Product Direction (% positive)
9.3
382
8.4
562
Features by Category
Signature Process
9.8
312
|
Verified
9.4
305
|
Verified
9.4
292
|
Verified
8.9
187
|
Verified
9.6
309
|
Verified
9.2
294
|
Verified
9.4
215
|
Verified
8.8
201
|
Verified
9.5
287
|
Verified
9.2
209
|
Verified
8.8
190
|
Verified
8.9
126
|
Verified
9.1
198
|
Verified
9.0
147
|
Verified
9.3
284
|
Verified
9.3
243
|
Verified
Agentic AI - E-Signature
Not enough data
8.3
5
Not enough data
8.3
5
Not enough data
8.3
5
Not enough data
8.3
5
Not enough data
8.7
5
Not enough data
Not enough data
Security and Scalability
9.5
252
|
Verified
9.3
204
|
Verified
9.6
255
|
Verified
9.3
201
|
Verified
9.3
180
|
Verified
9.4
139
|
Verified
Platform
9.0
163
|
Verified
8.8
82
|
Verified
9.3
186
|
Verified
9.3
107
|
Verified
8.5
71
9.0
69
|
Verified
9.4
205
|
Verified
9.3
140
|
Verified
8.8
139
|
Verified
8.9
56
|
Verified
Organization
Not enough data
9.2
248
Not enough data
9.1
306
Not enough data
9.3
237
Not enough data
9.3
300
Editing
Not enough data
9.1
299
Not enough data
9.1
360
Not enough data
9.3
307
Not enough data
9.2
321
Not enough data
9.2
245
Operating System
Not enough data
9.6
68
Not enough data
9.5
36
Not enough data
9.2
18
Security
Not enough data
9.6
8
Not enough data
9.6
8
Not enough data
9.6
9
Conversion
Not enough data
10.0
10
Not enough data
9.8
7
Not enough data
9.6
8
Logistics
Not enough data
9.2
8
Not enough data
9.4
9
Not enough data
9.2
10
Agentic AI - File Converter
Not enough data
Not enough data
Design
Not enough data
8.6
47
Not enough data
8.6
51
Not enough data
8.2
40
Collaboration
Not enough data
8.8
38
Not enough data
8.6
36
File Types
Not enough data
8.9
60
Not enough data
9.1
65
Not enough data
8.4
32
Edit & Revise
Not enough data
8.8
52
Not enough data
8.8
35
Not enough data
Feature Not Available
Integrate & Embed
Not enough data
8.1
30
Not enough data
8.6
32
Not enough data
8.6
33
Operating System
Not enough data
9.1
53
Not enough data
8.5
29
Not enough data
7.6
18
Generative AI
Not enough data
7.7
11
Not enough data
7.7
11
Not enough data
7.7
11
Not enough data
8.1
12
Not enough data
7.8
12
Agentic AI - Document Creation
Not enough data
8.5
9
Customization
Not enough data
9.0
8
Not enough data
Not enough data
Not enough data
9.6
8
Not enough data
10.0
6
Additional Functionality
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
10.0
5
Not enough data
8.9
6
Not enough data
Not enough data
Functionality
6.7
6
Not enough data
6.9
6
Not enough data
7.8
6
Not enough data
Support
5.6
6
Not enough data
5.3
6
Not enough data
6.1
6
Not enough data
Functionality - PDF SDKs
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Support - PDF SDKs
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Not enough data
Categories
Categories
Shared Categories
Formstack Sign and pdfFiller are categorized as E-Signature
Unique Categories
Formstack Sign is categorized as E-Signature APIs
pdfFiller is categorized as PDF Editor, Document Creation, File Converter, Online Form Builder, and PDF SDKs
Reviews
Reviewers' Company Size
Formstack Sign
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
pdfFiller
Small-Business(50 or fewer emp.)
Mid-Market(51-1000 emp.)
Enterprise(> 1000 emp.)
Small-Business
(50 or fewer emp.)
Mid-Market
(51-1000 emp.)
Enterprise
(> 1000 emp.)
Reviewers' Industry
Insurance
89.6%
Higher Education
1.2%
Non-Profit Organization Management
1.0%
Hospital & Health Care
0.5%
Information Technology and Services
0.5%
Other
7.2%
Real Estate
12.3%
Insurance
8.1%
Construction
7.0%
Accounting
5.1%
Hospital & Health Care
3.9%
Other
63.5%
Alternatives
Discussions
What makes InsureSign different from other e-signature solutions?
1 Comment
Official Response from Formstack Sign
InsureSign is the fastest and easiest way to get your documents signed. We provide all customers with dedicated customer assistance, and hands-on training.Read more
Is InsureSign secure?
1 Comment
Official Response from Formstack Sign
With InsureSign, there’s no need to worry about private documents being seen by the wrong individuals or being destroyed. Our e-signed documents are...Read more
How do I turn my documents into ones that can be e-signed?
1 Comment
Official Response from Formstack Sign
With InsureSign’s web-based e-signature software, you simply upload a document – of any file type – you’d like to get signed. Then you can instantly drag and...Read more
How do i download and import from the same computer?
3 Comments
CG
You click on the upper right hand orange button that say "+Add New". Then you choose "upload", select from what drive on your computer you want. Once you...Read more
Can you please make it so OneDrive business accounts can link up? Not just personal.
2 Comments
PB
Many thanks for your question, Josh!
As we've collected quite a bunch of such requests recently, we are already working on extending this integration to...Read more
How do I upload photos of my signature from my phone so that the signature looks natural on the doc?
2 Comments
NK
In the document you are editing, click on "Sign" and then at the bottom of the box click "Add Signature" and you will see the many options to choose from....Read more
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