PDF9.Ai
PDF9.Ai is a free, AI-powered PDF workspace that brings 68 tools into a single browser-based platform. It includes a PDF reader, full-featured editor, conversion suite, e-signature tools, and enterprise governance controls.
Most operations run entirely in-browser, so files never leave the user's device. Nine built-in AI models enable document chat, summarization, and translation into 50+ languages at no extra cost.
Key capabilities include merging, splitting, compressing, and organizing PDFs; converting to and from Word, Excel, PowerPoint, HTML, CAD, and image formats; OCR; PAdES/PKCS#7 digital signatures with audit trails; smart PII redaction; form filling for U.S. government forms; and document comparison.
PDF9.Ai serves students, freelancers, legal professionals, accountants, HR teams, and enterprises. Teams benefit from SSO, RBAC, audit logs, and compliance-aligned infrastructure. Desktop apps are available for Windows and macOS.
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PDF Pro 10
3.4 out of 5 stars
(91 Ratings)
PDF Pro is the easy to use alternative to Adobe Acrobat, allowing you to view, create, edit, secure, revise, or collaborate on a PDF document. PDF Pro's intuitive interface makes it easy to take advantage of the full versatility of any Portable Document Format file! The trial version of PDF Pro 10 adds a watermark to documents saved while using PDF Pro 10. The trial will work for 15. You must purchase a license in order to activate the full version of PDF Pro 10. Sold in over 90 countries, PDF Pro 10 is trusted by small and large businesses alike around the world to handle their PDF document management needs. PDF Pro 10 is available in 5 languages, and volume discounts are available.
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PrizmDoc
4.6 out of 5 stars
(9 Ratings)
Through a collection of UI components and content manipulation APIs, PrizmDoc provides customizable document processing to help developers deliver in-browser document creation, editing, and collaboration functionality, to enhance their software applications. Our functionality integrates on the client and server side smoothly, creating a seamless experience for both you and your users. Render and display dozens of file types, from Adobe PDFs and Microsoft Office files to CAD and DICOM formats, in a browser without the need to download or open native applications. Designed for seamless integration with your application, our zero footprint HTML5 viewer is fully customizable, from quick integrations with minimal configuration to complete programmatic control using our extensive JavaScript API.
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AmindPDF
AmindPDF's user interface is very user-friendly and makes the operation of PDF easy.
It can recognize PDF text as paragraphs or whole blocks of text, allowing users to edit text directly and smoothly, like in MS Word. for PDF protection, it allows adding passwords, setting document permissions, placing signatures, adding watermarks to PDF
It also supports batch operations to process files, such as merge/split tool, compression tool, creation tool, Bates numbering tool, and conversion tool, so users can process multiple PDF files at once.
AmindPDF is available for a number of platforms: Windows, iOS, and Android. Users are able to use the same PDF tool on a computer or mobile phone. So AmindPDF let you process or edit PDFs anytime, anywhere.
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