Stirling PDF vs Aprire P7M

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Stirling PDF compared with Aprire P7M
Detail	Stirling PDF	Aprire P7M
What it does	A free, private PDF editor you can run on any infrastructure.	Open and convert P7M digital signature files to PDF in your browser
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	IT
Pricing model	Freemium	Freemium
Pricing	Free: $0/month includes 60+ PDF tools, web/desktop/self-hosted access, open-source editor, and 1,000 monthly credits. Team: $99/month for 100 users, includes everything in Free plus single sign-on, team workspace, and central control. Enterprise: Custom pricing for regulated and air-gapped deploymen	Free account: preview and signer information included. Un file (Per-file): €3.99 per file. Pro (Monthly): €7.99 per month for unlimited files. All prices include VAT.
Key features	PDF reader with lightning-fast reading 60+ PDF editing tools OCR to read scanned pages Classification and tagging Signature validation PDF redaction Compression Routing to multiple destinations API for programmatic access Connectors for tool integration	View and preview P7M files in browser without installation Extract PDF from signed P7M documents Display signer information and certificate details Support for FatturaPA electronic invoices Handle multiple signatures on single document Download extracted files as PDF or ZIP archive Support for separate signatures (.p7s files) Works on iPhone, Android, Windows and Mac Detect files with incorrect extensions or base64 encoding
What makes it different	Completely free editor forever with no per-seat licensing Run on any infrastructure with files staying yours Process thousands of PDFs with AI-powered automation Every action logged and recorded for compliance	All file processing occurs directly in your browser on your device; no files are uploaded to external servers Free account includes document preview and full signer information without payment Handles Italian-standard P7M format that Windows and Mac cannot open natively No software installation or setup required; works entirely in browser Recognizes and processes FatturaPA electronic invoice format with detailed extraction
Community votes	0	0
DR (Domain Rating by Ahrefs)	62 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	15	0
Citation Flow (Majestic)	40	0
Referring domains (Majestic)	872	0

6 details filled in for both companies.

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