
MobiPDF (formerly PDF Extra) is an intuitive reader and editor that allows you to read, edit, create, OCR, organize, annotate, fill and sign, convert, and share any PDF. This makes MobiPDF an excellent choice for users seeking a budget-friendly alternative to Adobe Acrobat Pro.
HERE’S WHAT YOU GET WITH MOBIPDF:
Multiple Page View Modes: Enjoy a distraction-free "Read Mode".
Advanced Editing Tools: Experience a Word-like PDF editing environment.
Two-Way Conversions: Convert PDFs to and from Word, Excel, PowerPoint, or image formats.
OCR Support: Make scanned documents searchable.
Markup Tools: Highlight, comment, strikethrough, stamp, and more to enhance your documents.
Effortless PDF Organizer: Reorder, compress, split, and combine PDFs with ease.
Sign & Secure: Add signatures, create and fill forms, and protect your PDFs with passwords, encryption, and digital certificates.
Offline Mode: Work freely on your projects, even offline.
Seamless translation: One-click translate any PDF into 50+ languages.
Learn more

Adobe Acrobat is an all-in-one PDF productivity and e-signature platform and one of the leading enterprise document platforms that scales for global teams — designed to simplify document creation, editing, collaboration, and protection. Users can edit text and images directly within PDFs, reorganize pages, and compare file versions to quickly identify changes. The software enables fast conversion between PDFs and common file formats such as Microsoft Word, Excel, PowerPoint, and image files. Integrated e-signature capabilities allow businesses to collect legally binding signatures and track responses securely. With Acrobat Studio, Adobe Acrobat expands beyond core PDF and e‑signature tasks into an AI‑powered workspace for document insight, content creation, and collaboration.Acrobat AI Assistant adds intelligent document support by summarizing content, generating insights, and answering contextual questions with cited references. PDF Spaces creates a collaborative workspace where teams can centralize files, comments, and AI-driven guidance. Built-in protection tools safeguard documents with encryption, permissions, and redaction features. Mobile apps such as Acrobat Reader and Adobe Scan ensure access and editing capabilities from anywhere. Designed for individuals, students, and enterprises, Adobe Acrobat helps reduce document processing time and improve overall productivity.
Learn more
Pearl eSign API
The Pearl eSign API offers a secure, RESTful digital signing solution that allows various enterprise applications—including SAP, Microsoft Dynamics, Oracle ERP, and custom ERP/CRM/DMS systems—to programmatically sign documents. This API accommodates signing for PDF files and Base64 content, supports multiple signing methods such as USB Token DSC, Aadhar eSign, and PFX (DocuSigner Certificate), and features capabilities like bulk document signing, DSC validation, and audit trails, all while ensuring secure API key authentication. Utilizing a JSON request/response structure, it provides instant signed documents for integration and storage within your current systems, ensuring that documents are processed in real-time without permanent storage. By automating the document signing process, the Pearl eSign API enhances workflow efficiency and minimizes manual tasks, making it easier for organizations to implement scalable digital signing solutions across various teams and departments. Its versatility makes it an excellent fit for sectors like fintech, banking, government, and a wide range of enterprise applications, ultimately streamlining the signing process for all users involved. Additionally, organizations can leverage this API to maintain regulatory compliance while ensuring the integrity and security of their document workflows.
Learn more
Smallpdf
Smallpdf, a Swiss company, is made in Switzerland, the land where watches, banks and clean design are all present. Smallpdf has won numerous awards for its innovative document management tools.
Smallpdf was founded in 2013 and provides a simple, reliable, and secure solution to complex, awkward PDF software. Smallpdf is the most trusted and loved PDF software on the planet. It has served over 500 million users and 100,000 companies in 24 languages and in every country around the globe, including Antarctica.
Smallpdf seamlessly integrates with professional and personal tasks, increasing productivity and simplifying how people manage their documents. With tools to compress, convert and edit, sign, protect and unlock PDF documents in just few steps,
Learn more