Remove Barcode, Image, Text, Digital Signatures in PDF in C# .NET

Remove Digital Signatures from PDF in C#

Search and remove all or certain types of e-signatures from digitally secured and signed PDF files at once using Conholdate.Total for .NET APIs.

Instantiate Signature with input (PDF) document
Instantiate DigitalSearchOptions object with needed properties
Call Search method and get list of DigitalSignatures
Select digital signatures to remove from (PDF) document
Call Signature object Delete method and pass sigantures to it

Download & Install .NET Signature API

Deleting signatures from digitally signed documents requires GroupDocs.Signature namespace. Proceed to download the respective files or fetch the whole package directly from NuGet.

Remove any type of Barcode, Text, Image, or QR Code signatures from documents using operating systems such as Windows, Linux or macOS while working on Windows Azure, Mono and Xamarin platforms.

Remove Barcode Signatures from PDF in C#

The .NET signature API supports manipulating and removing barcode and QR-Code signatures from PDF documents in .NET applications using a few lines of C# code. Remove one or several digital signatures of different types from signed documents at the same time.

Instantiate Signature with input (PDF) document
Instantiate BarcodeSearchOptions object with needed properties
Call Search method and get list of BarcodeSignature
Select barcode signatures to remove from (PDF) document
Call Signature object Delete method and pass sigantures to it

PDF Document Information Extraction

The documents information extraction API not only allows getting the basic information about the source document file (PDF) but it also supports extracting some valuable document information such as file type, size, number of pages, height and width using stream or a file stored on local disk.

The .NET document signature library offers a set of useful features to cancel digital signature processes (sign, verify, search) at any stage using a few simple steps.

Remove Text & Image Signatures from PDF

Deleting text or image signatures from digitally signed PDF files in C# .NET is easier with Conholdate.Total for .NET APIs. Sign digital documents with custom signatures using different colors, font, padding and styling options.

Instantiate Signature with input (PDF) document
Instantiate TextSearchOptions object with needed properties
Call Search method and get list of TextSignatures
Select text signatures to remove from (PDF) document
Call Signature object Delete method and pass sigantures to it

Load & Sign Remotely Located Documents

The document eSign API enables you to render remotely located documents from various cloud document storage sources such as stream, local disk, URL, FTP, Amazon S3, and Azure Blob storage. The document preview feature enables you to get the image representation of the document pages that can be useful to preview and adjust the position of digital signature inside the document.

Get the document preview of whole document or some specific page numbers in PNG, JPG or BMP image formats.

What is PDF file format?

PDF (Portable Document Format) is a widely used document file format developed by Adobe Systems in 1993. It was specifically designed to provide a platform-independent solution for storing and sharing documents across various operating systems and over the Internet. PDFs utilize a vector-based drawing model, storing graphical elements such as lines, shapes, and images as mathematical equations. This unique approach ensures that PDFs are resolution independent, guaranteeing consistent document quality regardless of the viewing device or program.

One of the key advantages of PDFs is their support for a range of security features. Encryption, password protection, digital signatures, and document watermarking are among the security measures available. These features make PDFs highly secure and suitable for sensitive documents, such as medical records, legal documents, government forms, and invoices. The printing industry also heavily relies on PDFs to facilitate electronic communication with customers.

Creating PDFs is a straightforward process, as they can be generated from various electronic document formats, including Word documents, PowerPoint presentations, and webpages. It’s important to note that PDFs are typically not editable directly. To modify the content of a PDF, it must first be converted to a different file format that supports editing. Numerous software programs, many of which are freely available for download, offer the functionality to convert PDFs to editable formats.

PDFs have gained immense popularity and have become a standard method for document sharing due to their versatility, security features, and consistent formatting. Their compatibility across different devices and operating systems ensures seamless document access for users. Additionally, PDFs preserve the layout, fonts, and images of the original document, making them an ideal choice for sharing visually rich content.

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Remove Signatures from PDF File in C# .NET