If you're looking for something to replace HiPDF, LightPDF is a great alternative. It's a full-featured PDF tool suite that can convert PDFs to and from Word, PowerPoint, Excel and other formats, and it can edit, merge, split, annotate, sign and optimize PDFs. LightPDF also has AI-powered chat, summarization and analysis tools. It's good for personal and professional use, and it syncs across multiple devices with cloud support. It also offers professional API options for developers.
Another good alternative is ChatPDF, which uses large language GPT4 technology to summarize and interact with PDFs. You can upload hundreds of PDFs, ask natural language questions and get text output. ChatPDF promises to protect your data with GDPR compliance and SSL/TLS encryption. It's designed to help you work more efficiently and make better decisions, and it works in more than 95 languages.
If you want a one-stop shop for analyzing documents, ChatDOC is worth a look. It can handle a variety of documents, including PDFs, and offers features like instant answers, in-depth AI analysis, image analysis and math formula analysis. It also offers a browser extension for uploading files and encrypting them while in transit. That makes it a good option for students, professionals and businesses that need quick access to information in documents.
Last, pdfAssistant offers a 24/7 AI chatbot interface for a variety of PDF tasks. It can convert, compress, merge, add watermarks and extract text and metadata. The service uses industry leading technologies for secure and reliable results and operates on a pay-as-you-go credit system, making it a good option for professionals, students and anyone who manages documents.