Secure and Linearize PDF files using VeryPDF PDF Security API

Introducing VeryPDF PDF Security API: The Ultimate Solution for Securing PDF Files.

In today's digital age, securing electronic documents is of utmost importance. PDF files are widely used for document exchange, and it's essential to secure them against unauthorized access, modification, or distribution. VeryPDF PDF Security API is a powerful tool that enables developers to add security features to PDF files programmatically. In this article, we'll introduce you to this tool and highlight its features and benefits.


What is VeryPDF PDF Security API?

VeryPDF PDF Security API is a software development kit (SDK) that allows developers to add security features to PDF files programmatically. This API provides a simple and easy-to-use interface that can be integrated into various programming languages such as C++, C#, VB.NET, and Java. It supports linearization and can add various security features to PDF files, including password protection, encryption, and access control.

Features and Benefits for VeryPDF PDF Security API:

1. Password Protection: VeryPDF PDF Security API allows developers to add password protection to PDF files. This feature prevents unauthorized access to the document and ensures its confidentiality. You can set a user password and a master password, which provides different levels of access control.

2. PDF Encryption: The API supports various encryption algorithms, including 128-bit and 256-bit AES encryption. This feature provides strong security for PDF files, making it impossible to read or modify the content without the correct password.

3. Access Control: VeryPDF PDF Security API allows developers to set access control parameters for PDF files. You can restrict access to printing, copying, or modifying the document. This feature ensures the integrity of the document and prevents unauthorized distribution.

4. PDF Linearization: VeryPDF PDF Security API can also linearize PDF files for fast web view. Linearization is a process that optimizes the PDF file for web viewing, making it faster to load and view on the internet.

5. Easy to Use: The API provides a simple and easy-to-use interface that can be integrated into various programming languages. You can customize the security settings and add security features to PDF files with just a few lines of code.

6. Secure: VeryPDF PDF Security API uses industry-standard encryption algorithms to ensure the security of PDF files. It provides options for password protection and access control to further enhance security.

How to Use VeryPDF PDF Security API?

Using VeryPDF PDF Security API is straightforward. Here are the basic steps:

1. Download and install the API on your computer.

2. Create a new project in your programming language and add the API to your project.

3. Load the PDF file that you want to secure.

4. Customize the security settings, including the password, encryption, and access control parameters.

5. Add the security features to the PDF file.

6. Save the modified PDF file to the desired location.

VeryPDF PDF Security API is a powerful and efficient tool that provides developers with an easy and reliable way to add security features to PDF files. Its features such as password protection, encryption, access control, and linearization make it the ultimate solution for securing PDF files. With VeryPDF PDF Security API, you can ensure the confidentiality and integrity of your PDF documents easily and securely.

➤ Want to buy this product from VeryPDF?

Should you be interested in acquiring a license for our product or require assistance in developing a custom software solution based on it, please do not hesitate to reach out to us. Our team is always ready to assist you and provide you with the necessary support.

We look forward to the opportunity of working with you and providing developer assistance if required.

C++ example to Secure PDF files using VeryPDF PDF Security API:

#include <stdio.h>          /* Use standard Input/Output Console API */
#include "VSLibA.h"         /* Use VeryPDF PDF Library */
#include "VSExcept.h"       /* Use Exceptions API */
#include "VSError.h"        /* Use Errors API */
#include "VSDocA.h"         /* Use PDF Document API */
#include "VSPageA.h"        /* Use PDF Page Document API */

int main( int argc, char* argv[] ) /* Get PDF filename as first parameter */
    PDFLibHandle    PDFLibrary; /* PDF Library Handle */
    PDFDocHandle    Doc = NULL; /* PDF Document Handle */
    ppInt32         ErrorCode;  /* Check Error Code */
    char            ErrBuff[256];
    ppInt32         AllPermission = ( prPrint | prModifyContent | prCopyInformation | prModifyAnnotation
        | prFillAcroForm | prExtractTextAndImage | prAssembleDocument | prPrintHiResolution );

    PDFLibrary = InitPDFLibrary( NULL, NULL );/* Initialize PDF Library */
        return 0;
    Doc = PDFDocLoadFromFile( PDFLibrary, "../../data/In/PDF/island.pdf" );/* Load existing PDF file */
        return 0;
    PDFDocSetLinearized( Doc, false ); /* Set non-linearize option for crypted PDF file */
    PDFDocSetAutoLaunch( Doc, true );   /* Launch destination PDF file after work */
    /* Set security on pdf-file with all permissions, 128-bits crypt key and passwords :
    user - "123", owner - "12345" */
    PDFDocSetSecurity( Doc, AllPermission, pt128BitProtection, "123", "12345" );
    PDFDocSaveToFile( Doc, "../../data/Out/PDF/SetPassword.pdf" ); /* Save destination PDF file as "set-password.pdf" in current path */
    if ( Doc )
        PDFDocClose ( Doc );/* Close PDF Document and free memory */
    ErrorCode = PDFLASTERROR( PDFLibrary );/* Check last error, if 0 then finished successfully */
    if ( ErrorCode ){
        VSGetErrorStr( ErrorCode, ErrBuff );
        printf("Error: %s\n", ErrBuff);
    }else {
    DonePDFLibrary( &PDFLibrary );/* Free PDF Library */
    PDFFINALLYEND( PDFLibrary );/* End of try...end block */
    return ErrorCode;/* Return Error Code as program result */
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