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PDF.net is a web-based, all-in-one PDF editing and document processing platform that enables developers and teams to programmatically create, edit, sign, annotate, convert, merge, split, compress, and secure PDF files via a clean SaaS UI and API-ready workflow. It supports common input formats (PDF, DOCX, JPG, PNG) and focuses on efficient, privacy-first processing with automatic file cleanup and HTTPS encryption. | Extract text from images and PDFs with 99.9% accuracy. Supports handwriting recognition and 100+ languages. No registration required. Best free AI-powered OCR solution. |
Create and edit PDF files, convert PDFs to and from common formats (DOCX, JPG, PNG), merge and split PDF documents, compress PDF files to reduce size, add annotations and comments, apply electronic signatures, secure PDFs with passwords and permissions, cloud-based processing with automatic file cleanup, browser-based access with no local installation required. | Handwriting to Text, Receipt OCR, ID Card Scanner, Image to Text, PDF to Image |
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HelloSign provides fast, secure, and legally binding eSignatures for Business. Our API gives you the ability to embed signing right into your own site with just a few lines of code. Set-up only takes minutes to complete.

It is a сross-platform (web and mobile) e-signature tool for you to sign, assign and manage documents online. Stop wasting time emailing signers, printing copies, and faxing paper. Just import your document, sign or request signatures, and hit send.

Google Cloud Vision API enables developers to understand the content of an image by encapsulating powerful machine learning models in an easy to use REST API.

Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. Since 2006 it is developed by Google.
DocRaptor makes it easy to convert HTML to PDF and XLS format. Choose your document format, select configuration options and make an HTTP POST request to our server. DocRaptor returns your file in a matter of seconds. We provide extensive documentation and examples to get you started, and our API makes it easy to use DocRaptor to generate PDF and Excel files in your own web applications.

Amazon Rekognition is a service that makes it easy to add image analysis to your applications. With Rekognition, you can detect objects, scenes, and faces in images. You can also search and compare faces. Rekognition’s API enables you to quickly add sophisticated deep learning-based visual search and image classification to your applications.

It is a free and open-source document converter, widely used as a writing tool and as a basis for publishing workflows. It converts files from one markup format into another. It can convert documents in (several dialects of) Markdown, reStructuredText, textile, HTML, DocBook, LaTeX, MediaWiki markup, TWiki and many more.

This library supports over 60 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract.js can run either in a browser and on a server with NodeJS.

Editaimg helps you edit images with AI: remove backgrounds, edit text on images, upscale resolution, retouch faces, and export in popular formats.

AI-powered OCR and document extraction API converts documents to structured JSON in seconds. 98%+ accuracy for invoices, Aadhaar, PAN, salary slips & 20+ document types. Pay per page.