PDF Encrypt & Decrypt vs. PDF4 Comparison Chart

MobiPDF (formerly PDF Extra) is an intuitive and powerful PDF editor and reader designed for today’s modern user - the cost-efficient alternative to Adobe Acrobat Pro you’ve been looking for. FEATURES OVERVIEW: PDF Viewer and Reader: Switch between page views or use "Read Mode" for distraction-free reading. Create and Edit PDFs: Modify text and images or start with a blank PDF. Convert to Office Formats: Easily turn PDFs into Word, Excel, PowerPoint, and image files. Leverage OCR: Transform scanned documents into searchable PDFs. Organize PDFs: Combine, split, reorder, and compress documents. Markup and Comment: Highlight, annotate, and add bookmarks or stamps. Fill PDFs: Seamlessly fill forms or create ones from scratch. Sign PDFs: Sign your documents anywhere—no ink required! Secure Your Work: Protect files with passwords, digital signatures, and 256-bit encryption. Offline Mode: Full functionality without internet access. Translate PDFs

PDFCreator automates document output for Windows-based business environments, handling the full creation pipeline from conversion to delivery. It converts print output from any application into PDF, JPG, PNG, or TIF using a virtual printer driver, with no changes to existing workflows required. Businesses use PDFCreator to automate repetitive document tasks: output is captured, formatted, named, secured, and routed based on configurable profiles. Use cases include automated report generation, batch document processing, and compliant document delivery in regulated industries. Key capabilities: encryption, password protection, digital signing, watermarking, MSI deployment, GPO support, and centralized profile management. Compatible with Word, Excel, web browsers, ERP systems, and any Windows print-enabled application. Available in a free edition for individual, non-commercial use and three paid editions for business, terminal server, and enterprise deployments.

Adobe Acrobat Studio is a leading enterprise document platform built to scale for global teams — delivering AI-powered document intelligence, trusted PDF tools, and on-brand content creation in one secure solution. Core capabilities include PDF creation, editing, conversion, annotation, redaction, e-signatures, and fillable forms. AI Assistant enables conversational document intelligence across PDFs, Word docs, spreadsheets, and more — surfacing summaries, key insights, and source-linked citations for verified, audit-ready answers. PDF Spaces organizes files, collaboration, and context into centralized knowledge hubs. The Generate Presentation feature transforms any document into a polished, branded deck using AI and Adobe Express templates. Enterprise-grade encryption, admin controls, and compliance workflows support secure document sharing and high-volume document processing at scale — across Legal, Finance, HR, Sales, and more. Available on desktop, web, and mobile.

PDF Guru is an online PDF tool that enables users to convert, edit, merge, and compress PDFs with just a few clicks. Download your document quickly and with ease. Our PDF converter can create PDF files in seconds! We use HTTPS encryption to protect your digital data when you make PDF files on our platform. Redact a PDF, modify text, add new objects, and perform even more actions all in one place. We designed an intuitive interface so that you can use our PDF maker without any hassle. Our PDF maker works online on all platforms, whether it's Windows, Mac OS, Linux, iOS, or Android. If you don’t want others to open, edit, or print your file, you can lock or restrict access to it.

Foxit provides a powerful suite of cloud-native APIs that help organizations automate, secure, and modernize document workflows. Built on scalable REST architecture, Foxit APIs enable developers to generate, convert, extract, sign, and display documents directly within applications—eliminating manual processes and accelerating digital operations. The Foxit PDF Services API supports high-volume PDF automation, including conversion, extraction, optimization, and redaction. The Document Generation API creates dynamic PDFs and DOCX files from templates and real-time business data. The Foxit eSign API embeds legally binding eSignature workflows with full audit trails and compliance support. The PDF Embed API delivers customizable in-app PDF viewing, annotations, and secure access controls. Together, Foxit APIs provide a secure, scalable foundation for end-to-end document automation and digital transformation.

Add a fully functional PDF editor to your ASP.NET website in minutes! Compatible with 99% of desktop & mobile browsers, from Internet Explorer 6 through the latest iOS Safari release, RAD PDF simply works. No plugins or other software needed. RAD PDF natively supports the most commonly used PDF features. Beyond a PDF reader, RAD PDF equips web applications with a browser-based PDF editor & PDF annotator. Features not even available in Adobe Acrobat Reader can be used to provide advanced PDF functionality. By enabling PDF form filling, PDF redaction, & PDF signing directly in the web browser, RAD PDF users can utilize PDF features without worrying about having the right platform or software installed! Allow your app to design new PDF forms, protect content, sign PDFs, & more using an intuitive graphical user interface (GUI). Client (JavaScript) and server APIs allow for endless possibilities .NET Core, Framework, & .NET 5+ supported Try editing any PDF with RAD PDF, FREE!

Proton Drive is the all-in-one workspace for storing sensitive data and collaborating with your teams, clients, and partners. Collaborate securely without compromising control: Share client files, contracts, and sensitive business documents with full end-to-end encryption. You control who can access what. Set passwords, add expiry dates, 
 or revoke access anytime. Protect all your business data:
Plans come with 1 TB of storage allowance per user, giving your team enough space for all their files and docs. You can always add more storage later if needed. Simplify compliance across industries: Proton Drive supports GDPR, HIPAA, NIS2, DORA, and ISO 27001 compliance out of the box, and has been successfully audited for SOC 2 Type II. There's no need for custom configurations or third-party tools, as this helps you meet regulatory standards with minimal effort.

PackageX OCR API converts any smartphone into a powerful universal label scanner that reads every bit of text on the label, including barcodes and QR codes. Our state-of-the-art OCR technology uses robust deep learning models and proprietary algorithms to extract information from package labels. Our OCR API is trained based on information from over 10 million labels, enabling over 95% scan accuracy -- the best in the market. Our technology scans in low-light conditions, reads at any angle, and works with damaged labels. Build your custom OCR scanner app and remove pen-and-paper inefficiencies. Easily extract information from both printed text and handwritten labels with our OCR scanner. Our OCR technology is trained on multilingual label data extracted from over 40 countries. Detect & extract information from any barcode or QR code.

Nutrient is the comprehensive solution for all your PDF needs, offering tools that effortlessly integrate and operate PDF functionality across any platform. 1. SDK PRODUCTS Integrate robust PDF functionality into iOS, Android, Windows, web (JavaScript), or any cross-platform technology, providing capabilities such as PDF viewing, markup, collaboration, and more. 2. LIBRARIES Utilize our potent .NET and Java libraries to boost your backend applications with batch processing of redactions and PDF forms, OCR’d scanned text, and editing of PDF documents, directly from your application server. 3. PROCESSOR Our dynamic PDF microservice, Processor, enables swift generation of PDFs from HTML, including HTML forms, along with Office-to-PDF conversions, OCR, redaction, and XFDF merging and exporting. 4. PDF API Use hosted PDF API to generate, convert, and modify PDF documents in your workflows. We manage the development and server administration, letting you focus on what you do best.

ARGOS is an AI-powered identity verification and workflow automation platform that helps businesses securely verify individuals and organizations worldwide. Our mission is to create a safer digital ecosystem by enabling companies to identify anyone, anywhere, at any time. ARGOS ID Check provides fast, seamless remote identity verification for fintech, gaming, virtual assets, e-commerce, telecommunications, and other regulated or high-risk industries. Supporting identity documents from more than 200 countries, it combines document verification, facial recognition, selfie verification, liveness detection, AML screening, age verification, and fraud prevention in one platform. Its modular design allows businesses to customize each verification workflow based on their risk, compliance, and customer experience requirements. ARGOS helps detect forged documents, deepfakes, duplicate accounts, bots, VPNs, and other suspicious activity while reducing friction during onboarding. ARGOS Omni extends these capabilities to KYB and general workflow automation. It helps businesses streamline document collection and data extraction, business registry searches, ownership and UBO identification, AML screening, and case review. Customizable workflows, decision rules, and detailed audit trails reduce manual work and create a more consistent, scalable compliance process. Together, ARGOS ID Check and Omni help organizations onboard customers and businesses faster, reduce operational costs, prevent fraud, and manage compliance more effectively.