
MobiPDF, previously known as PDF Extra, serves as a user-friendly platform for reading and editing PDFs, offering features such as creating, organizing, annotating, filling, signing, converting, and sharing any PDF file. This versatile tool stands out as a cost-effective substitute for Adobe Acrobat Pro, catering to a wide array of user needs.
HERE’S WHAT YOU CAN EXPECT WITH MOBIPDF:
Multiple Viewing Options: Utilize a focused "Read Mode" for an uninterrupted reading experience.
Sophisticated Editing Capabilities: Engage with a PDF editing interface reminiscent of Word.
Bidirectional Conversions: Effortlessly transform PDFs into and from formats like Word, Excel, PowerPoint, or images.
OCR Integration: Enhance scanned documents by making them searchable.
Annotation Features: Utilize tools to highlight, comment, strikethrough, stamp, and more to improve your documents.
Simple PDF Management: Easily reorder, compress, split, and merge PDFs as you need.
Signing and Security: Incorporate signatures, create and fill out forms, and safeguard your PDFs with passwords, encryption, and digital certificates.
Offline Functionality: Continue working on your files without needing an internet connection.
Instant Translation: Translate any PDF into over 50 languages with just a click.
Overall, MobiPDF combines essential features and user-friendly design, making it a reliable choice for anyone needing comprehensive PDF tools.
Learn more

Adobe Acrobat Studio is a powerful document management and AI-powered platform and one of the leading enterprise document platforms that scales for global teams — providing everything needed to create, edit, convert, share, and secure PDF files. It allows users to modify text and images directly within PDFs, rearrange pages, add comments, and compare document versions for precise change tracking. With seamless conversion capabilities, files can be transformed between PDF and formats such as Word, Excel, PowerPoint, and images in just a few clicks.
Acrobat Studio's AI Assistant elevates productivity by generating summaries, extracting key insights, and answering questions with source-linked citations. PDF Spaces introduces a collaborative environment where teams can centralize project files, add notes, and interact with AI across multiple document types. The Generate Presentation feature transforms documents into polished, branded decks using Adobe Express — no design skills required.
Integrated e-signature tools enable organizations to send, collect, and monitor legally binding signatures securely. Security features including password protection, redaction, and restricted editing keep sensitive information protected.
Learn more
Pearl eSign API
The Pearl eSign API provides a robust and secure RESTful solution for digital signing, enabling a variety of enterprise applications—including SAP, Microsoft Dynamics, Oracle ERP, along with any custom ERP, CRM, or DMS systems—to sign documents programmatically. Supporting both PDF files and Base64 content, this API offers multiple signing methods such as USB Token DSC, Aadhar eSign, and PFX (DocuSigner Certificate), and includes functionalities like bulk signing, DSC validation, and audit trails, all while prioritizing secure API key authentication. With its JSON request/response format, the Pearl eSign API delivers signed documents instantly for seamless integration and storage within existing systems, ensuring real-time document processing without the need for permanent storage solutions. By automating the document signing workflow, it significantly boosts efficiency and reduces the burden of manual tasks, allowing organizations to easily adopt scalable digital signing methods across different teams and departments. Its adaptability makes it particularly suitable for industries such as fintech, banking, and government, thereby simplifying the signing experience for all stakeholders involved. Moreover, organizations can utilize this API to ensure they remain compliant with regulations while safeguarding the integrity and security of their document handling processes. In doing so, the Pearl eSign API not only enhances operational workflows but also contributes to a more reliable and efficient approach to document management.
Learn more
Smallpdf
Smallpdf, hailing from Switzerland—a country renowned for its precision in watchmaking, banking excellence, and minimalist design—has garnered multiple accolades for its cutting-edge document management solutions. Established in 2013, the company offers a straightforward, dependable, and secure alternative to cumbersome PDF software options. With a user base exceeding 500 million individuals and 100,000 businesses across 24 languages and every corner of the globe, including the remote regions of Antarctica, Smallpdf has become the go-to choice for PDF management. Its tools are designed to enhance both professional and personal workflows, thereby boosting efficiency and transforming document handling into a hassle-free experience. Users can easily compress, convert, edit, sign, protect, and unlock PDFs in just a few simple steps, making document management more accessible than ever before. This commitment to user-friendliness has solidified Smallpdf's reputation as a beloved resource for anyone dealing with PDF files.
Learn more