pdfFiller vs Formstack Documents vs CertifySimple Comparison
pdfFiller
Starting at $8 /Month
- Free Trial
- Large Enterprises
- Medium Business
pdfFiller allows users to quickly and easily create PDF files on their Windows PC. Users can fill a PDF form with their own data, or upload an existing Microsoft Word template. Once filled, a PDF document can be saved fo…
Formstack Documents
Starting at $92 /Month
- Free Trial
- Large Enterprises
- Medium Business
Create custom legal forms, contracts, letters and more with Formstack's extensive library of fully customizable standard and legal documents. Create, customize and fill out documents online using our cloud-based software…
CertifySimple
Starting at $8 /Month
- Large Enterprises
- Medium Business
CertifySimple is a downloadable, secure document creation system that enables user to capture and convert hard copy documents into electronic data. Simply install the software on computer, scan an original document into…
Formstack Documents leads on user satisfaction with a 4.7-star rating across 183 reviews.
pdfFiller vs Formstack Documents vs CertifySimple — at a glance
| Feature | pdfFiller | Formstack Documents | CertifySimple |
|---|---|---|---|
| Rating | 4.5 / 5 | 4.7 / 5 | — |
| Reviews | 8,757 | 183 | — |
| Starting price | $8 /Month | $92 /Month | $8 /Month |
| Free trial | Yes | Yes | No |
| Free version | No | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business |
| Category | Document Creation Software | Document Creation Software | Document Creation Software |
| Platforms | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS, Installed - Windows, Installed - Mac | SaaS/Web/Cloud | SaaS/Web/Cloud |
| API | Available | Available | — |
| Support modes | 24/7 (Live rep) | Business Hours, Online | Online |
| Certifications | SOC 2, HIPAA, GDPR | SOC 2, HIPAA, GDPR | — |
| Data residency | US | Global | US |
Key differences between pdfFiller and Formstack Documents
- Pricing: pdfFiller starts at $8 /Month, while Formstack Documents starts at $92 /Month.
- User satisfaction: Formstack Documents scores higher with a 4.7-star average.
- Deployment: pdfFiller supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS, Installed - Windows, Installed - Mac; Formstack Documents supports SaaS/Web/Cloud.
Compare pdfFiller vs Formstack Documents vs CertifySimple — and walk away knowing which one fits.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Document Creation Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Talk to an expert Talk to an expert | Talk to an expert Talk to an expert |
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Biggest differences
Start here before you go deeper into features.
Best for simple, efficient PDF form creation and filling on Windows PCs.
- You need to quickly fill and save PDF forms repeatedly with saved data.
- Your workflow requires easy integration of Microsoft Word templates into PDFs.
- You want built-in emailing and WYSIWYG printing options within a streamlined app.
- Your team requires advanced document workflow automation or extensive collaboration features.
- You need cross-platform or mobile support beyond Windows.
Best for legal and HR teams needing customizable, collaborative document creation.
- You require a broad library of customizable legal and standard document templates.
- Your team needs real-time collaboration and version control across multiple devices.
- Your organization is mid-sized to large, benefiting from cloud-based document workflows.
- You are a freelancer or sole proprietor with minimal document automation needs.
- Your company demands highly specialized or industry-specific document automation beyond standard templates.
Large Enterprises, Medium Business, Small Business
pdfFiller: Best for simple, efficient PDF form creation and filling on Windows PCs. Formstack Documents: Best for legal and HR teams needing customizable, collaborative document creation.
Description | pdfFiller allows users to quickly and easily create PDF files on their Windows PC. Users can fill a PDF form with their own data, or upload an existing Microsoft Word template. Once filled, ... Read More about pdfFiller | Create custom legal forms, contracts, letters and more with Formstack's extensive library of fully customizable standard and legal documents. Create, customize and fill out documents online ... Read More about Formstack Documents | CertifySimple is a downloadable, secure document creation system that enables user to capture and convert hard copy documents into electronic data. Simply install the software on computer, ... Read More about CertifySimple |
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Best Company Size | 1-50 employees51-500 employees | 51-500 employees500+ employees | — |
Get pricing help | Get pricing help | Get pricing help |
Software Demo
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Compare pdfFiller, Formstack Documents and CertifySimple on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Get help choosing | Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | ✓ Yes | ✓ Yes | — |
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HIPAA | ✓ Yes | ✓ Yes | — |
GDPR | ✓ Yes | ✓ Yes | — |
Single Sign-On (SSO) | ✓ Yes | ✓ Yes | — |
Multi-Factor Auth (MFA) | ✓ Yes | ✓ Yes | — |
Data Encryption | ✓ Yes | ✓ Yes | — |
Audit Logs | ✓ Yes | ✓ Yes | — |
Data Residency | 🇺🇸 US | 🌐 Global | 🇺🇸 US |
pdfFiller vs Formstack Documents User Reviews & Rating Comparison
User Ratings | 4.7 (based on 183 reviews) | No reviews available for the product | |
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Rating Distribution | No reviews available for this product | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Users generally appreciate pdfFiller for its ease of use and efficient PDF form handling, though some desire more advanced features and clearer pricing. What buyers like
Common complaints
| Buyer sentiment Users generally express high satisfaction with the platform's document customization and collaboration features, though some note pricing and integration limitations. What buyers like
Common complaints
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Positive Reviews | No reviews available for the product | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Screenshots |  4 Screenshots | No screenshots available. | No screenshots available. |
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Videos |  2 Videos |  2 Videos |  1 Videos |
Alternatives
Alternatives |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, pdfFiller or Formstack Documents?
- Formstack Documents edges out the other on user ratings (4.7 vs 4.5). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do pdfFiller and Formstack Documents offer a free trial?
- Yes, both pdfFiller and Formstack Documents offer a free trial.
- What is the starting price of pdfFiller vs Formstack Documents?
- pdfFiller starts at $8 /Month. Formstack Documents starts at $92 /Month.
- What are the top alternatives to pdfFiller?
- Top alternatives to pdfFiller include Documint, Adobe Acrobat DC, PDFelement, Fill, Adobe Sign.
- What are the top alternatives to Formstack Documents?
- Top alternatives to Formstack Documents include Paperform, Smart Forms, SimplyDocs, Documint, Adobe Acrobat DC.