Abstract: Techniques for text identification in layered digital content are described. In an implementation, an item of digital content is received including a plurality of layers. A text layer is identified in the item of digital content from the plurality of layers. A text channel image is generated by isolating the text layer from the plurality of layers. A text identification is then generated based on the text channel image using a page decomposition model, the page decomposition model trained using machine learning.

Abstract: Techniques for text identification in layered digital content are described. In an implementation, an item of digital content is received including a plurality of layers. A text layer is identified in the item of digital content from the plurality of layers. A text channel image is generated by isolating the text layer from the plurality of layers. A text identification is then generated based on the text channel image using a page decomposition model, the page decomposition model trained using machine learning.

Abstract: Techniques are disclosed for extraction and modification of Portable Document Format (PDF) file content using Hyper Text Markup Language (HTML) based authoring tools on File Transfer Protocol (FTP) clients. A PDF FTP processor is configured to map components of stored PDF files to a hierarchical directory structure, and to receive FTP commands from a client application which identifies a PDF document and a type of access or operation (e.g., content or attribute modification, content extraction, etc.). The FTP commands also identify components of the PDF document upon which the requested operations are to be performed. The PDF FTP processor is further configured to invoke function calls to a PDF parser library to perform the requested operations. These techniques enable client software to access and manipulate the PDF document in a relatively simple and efficient manner, for example through HTML authoring tools that communicate to the server through FTP commands.

Abstract: Techniques are disclosed for extraction and modification of Portable Document Format (PDF) file content using Hyper Text Transfer Protocol (HTTP) requests. A PDF web server is configured to receive HTTP requests from a client which identify a PDF document and a type of access or operation (e.g., content or attribute modification, content extraction, etc.). The HTTP requests include Uniform Resource Locator (URL) path to identify components of the identified PDF document upon which the requested operations are to be performed. The PDF web server is further configured to invoke function calls to a PDF parser library to perform the requested operations. These techniques eliminate the need for client software to include relatively complex PDF parser libraries, instead allowing the client to access and manipulate the PDF document in a simpler and more efficient manner. In some cases, the PDF web server may be incorporated in a PDF viewer.

Abstract: Techniques are disclosed for extraction and modification of Portable Document Format (PDF) file content using Hyper Text Markup Language (HTML) based authoring tools on File Transfer Protocol (FTP) clients. A PDF FTP processor is configured to map components of stored PDF files to a hierarchical directory structure, and to receive FTP commands from a client application which identifies a PDF document and a type of access or operation (e.g., content or attribute modification, content extraction, etc.). The FTP commands also identify components of the PDF document upon which the requested operations are to be performed. The PDF FTP processor is further configured to invoke function calls to a PDF parser library to perform the requested operations. These techniques enable client software to access and manipulate the PDF document in a relatively simple and efficient manner, for example through HTML authoring tools that communicate to the server through FTP commands.

Abstract: Techniques are disclosed for extraction and modification of Portable Document Format (PDF) file content using Hyper Text Transfer Protocol (HTTP) requests. A PDF web server is configured to receive HTTP requests from a client which identify a PDF document and a type of access or operation (e.g., content or attribute modification, content extraction, etc.). The HTTP requests include Uniform Resource Locator (URL) path to identify components of the identified PDF document upon which the requested operations are to be performed. The PDF web server is further configured to invoke function calls to a PDF parser library to perform the requested operations. These techniques eliminate the need for client software to include relatively complex PDF parser libraries, instead allowing the client to access and manipulate the PDF document in a simpler and more efficient manner. In some cases, the PDF web server may be incorporated in a PDF viewer.