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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. | 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. |
Make HTTP POST requests using C#, Curl, jQuery, Node.js, PHP, Prototype.js, Python, Ruby, and Rails;PDF Options: PDF Options, Base URL, No XInclude, No Network, HTTP User, HTTP Password, HTTP Proxy, HTTP Timeout, Insecure, Media, No Author Stylesheets, No Default Stylesheets, No Embedded Fonts, No Subset Fonts, No Compression, Encryption, Key Bits, User Password, Owner Password, Disallow Print, Disallow Copy, Disallow Annotate, Disallow Modify, Input Type, Prince Version, Prince Javascript;Excel XLS Options: Excel XLS Version Support, Special Table & Cell Attributes, Table Name, Table Password, TD Colspan, TD Rowspan, Multiple Worksheets, Specific Styles, Content Type, Text Align, Vertical Align, Text Indent, White Space, Text Orientation, Background Pattern, Background Color, Border Color, Border Style, Compact Border Syntax, Font Size, Text Decoration, Color, XLS Format, Height, Width, XLS Locked, Thousands Delimiter, Decimal Delimiter | Handwriting to Text, Receipt OCR, ID Card Scanner, Image to Text, PDF to Image |
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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.

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.

Free online tools and developer APIs for PDF processing, image optimization, data formatting, and security tasks
PDFGate is a developer-focused PDF API for generating and managing PDFs from applications. It supports HTML-to-PDF conversion, fillable PDF form fields, and a growing set of PDF utilities designed for backend workflows. The API is built for reliability and precision, making it suitable for invoices, contracts, reports, and other transactional documents. PDFGate emphasizes modern API design, predictable rendering, and features often missing from simpler HTML-to-PDF services, such as native support for interactive form fields. It is designed for teams that need more than basic PDF generation, with a roadmap that includes digital signatures, SDKs, and additional PDF processing endpoints.

Plan, write, and publish books, PDF guides, workbooks, and audiobooks with AI workflows. Customize branding and export instantly.

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