Stirling PDF
Your PDFs. Your AI.
Stirling PDF is a free, private PDF editor that you can run on any infrastructure. It offers over 60 powerful tools for editing and processing documents securely.
| Best for | Teams requiring private, self-hosted document processing |
| Website | stirling.com |
Company facts
| Social profiles | LinkedIn, X |
Facilities and features
- Published pricing
- Self-serve sign-up
- API
What stands out
The product is private, open-source, and audit-ready to protect sensitive files.
“Private, open-source, and audit-ready.”Stirling PDF, own website
The product allows users to call its features from their own code via APIs.
“Call it from your own code, connect the tools your team already uses, or just ask.”Stirling PDF, own website
Strengths and trade-offs
- The product is private, open-source, and audit-ready to protect sensitive files.
- The product allows users to call its features from their own code via APIs.
Appears in
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Smallpdf90.0RANKINGfull ranking →How Stirling PDF ranks
#8 in Enterprise intelligent document processing software
How the score is made up: Evidence on its own site 20; How complete its published information is 12; Fit to this ranking's criteria 40; Buying information on its own site 12.
“Work on thousands of PDFs at a time. Set up AI pipelines that process every PDF that arrives.”Stirling PDF, own website
“Today it has grown to over 30 million downloads and runs inside 55,000 companies around the world.”Stirling PDF, own website
#8 in Enterprise OCR software
How the score is made up: Evidence on its own site 20; How complete its published information is 12; Fit to this ranking's criteria 40; Buying information on its own site 12.
“OCR Read scanned pages Classify Tag type and sensitivity Validate Check every signature Redact Hide sensitive details Compress”Stirling PDF, own website
“Used by 75% of the Fortune 500 Bring your whole team. Everything you need to scale from editing one PDF to processing millions.”Stirling PDF, own website
#8 in OCR software for developers
How the score is made up: Evidence on its own site 20; How complete its published information is 12; Fit to this ranking's criteria 40; Buying information on its own site 12.
“OCR Read scanned pages Classify Tag type and sensitivity Validate Check every signature Redact Hide sensitive details Compress”Stirling PDF, own website
“Call it from your own code, connect the tools your team already uses, or just ask. Redact all of the account numbers.”Stirling PDF, own website
#9 in OCR software with a free plan
How the score is made up: Evidence on its own site 20; How complete its published information is 12; Fit to this ranking's criteria 40; Buying information on its own site 12.
“OCR Read scanned pages Classify Tag type and sensitivity Validate Check every signature Redact Hide sensitive details Compress”Stirling PDF, own website
“The open-source PDF editor for individuals $ 0 $ 0 /month No card required What's included: 60+ PDF tools”Stirling PDF, own website
#10 in PDF editors with a free plan
How the score is made up: Evidence on its own site 20; How complete its published information is 12; Fit to this ranking's criteria 40; Buying information on its own site 12.
“PDF Editor 60+ powerful tools for editing PDFs on any computer or server.”Stirling PDF, own website
“The open-source PDF editor for individuals $ 0 $ 0 /month No card required What's included: 60+ PDF tools”Stirling PDF, own website
Alternatives to Stirling PDF
| PDFtron Developer-centric PDF SDK with intelligent document processing | #1 in Enterprise intelligent document processing software | 98.0 |
| UiPath Document Understanding Enterprise-grade AI document processing built into RPA | #2 in Enterprise intelligent document processing software | 92.0 |
| M-Files | #3 in Enterprise intelligent document processing software | 90.0 |
 Microsoft Azure Form RecognizerMicrosoft Azure's form and document understanding service | #4 in Enterprise intelligent document processing software | 90.0 |
 RossumAI-powered document gateway for enterprises | #5 in Enterprise intelligent document processing software | 90.0 |
 Vic.aiAI-first AP automation with machine learning from historical patterns | #6 in Enterprise intelligent document processing software | 88.0 |
Questions about Stirling PDF
Who is Stirling PDF best for?
Stirling PDF is best for teams requiring private, self-hosted document processing.
Where does Stirling PDF rank?
Stirling PDF is ranked #8 in Enterprise intelligent document processing software (Lister Score 84.0), #8 in Enterprise OCR software (Lister Score 84.0), #8 in OCR software for developers (Lister Score 84.0), #9 in OCR software with a free plan (Lister Score 84.0) and #10 in PDF editors with a free plan (Lister Score 84.0).
What are the best alternatives to Stirling PDF?
The closest alternatives on Lister are PDFtron (#1 in Enterprise intelligent document processing software), UiPath Document Understanding (#2 in Enterprise intelligent document processing software) and M-Files (#3 in Enterprise intelligent document processing software).
Is this your company?
Claim Stirling PDF to suggest corrections to its listing (pricing, features, details) or ask about an enhanced profile. We review every claim before anything changes.