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Neevia PDFsign/encrypt

Neevia PDFsign/encrypt

VERSION 4.5 build 907
Updated on: January 27, 2026

Neevia PDFsign/encrypt is a cost effective application that allows you to digitally sign, timestamp, certify and/or encrypt PDF files.

  DOWNLOAD     PRICING / BUY


PRODUCT SCREENSHOTS
Neevia PDFsign/encrypt screenshots


The main purpose of a digital signature is to uniquely identify the signer of an electronic document. With the advent of paperless business models there is an increased demand for digitally signed PDF documents. In many countries digitally signing an electronic document became a legal requirement.

Neevia PDFsign/encrypt is a cost effective application that allows you to digitally sign, timestamp and/or encrypt PDF files. By applying a digital signature on your PDF documents you will be able to guarantee the integrity of the content and also provide an additional level of trust in any business transaction you conduct. If you are a developer you can easily integrate PDFsign/encrypt with your own application via a COM object or .NET assembly.

KEY FEATURES

  • Sign multiple PDF files in one step;
  • Time-stamp PDF files;
  • Certify PDF files;
  • Flexible signature appearance;
  • Fully multi-threaded;
  • Linearization (Fast Web View) support;
  • PDF encryption support (RC4/AES algorithms);
  • Does NOT require any Adobe products;

SUPPORTED OPERATING SYSTEMS

The operating systems listed here have been tested with Neevia PDFsign/encrypt and are officially supported:

  • Windows Server 2025 64-bit edition
  • Windows Server 2022 64-bit edition
  • Windows Server 2019 64-bit edition
  • Windows Server 2016 64-bit edition
  • Windows 11 32-bit and 64-bit editions
  • Windows 10 32-bit and 64-bit editions
  • Windows 8 32-bit and 64-bit editions
  • Windows Server 2012 32-bit and 64-bit editions
  • Windows 7 32-bit and 64-bit editions
  • Windows Server 2008 32-bit and 64-bit editions
  • Windows Vista 32-bit and 64-bit editions

RECOMMENDED HARDWARE

  • Standard PC; 2GHz or faster compatible x86/x64 processor
  • RAM: 2GB RAM recommended, 1GB minimum
  • Hard-disk: 100MB free space recommended, 30MB free space required
  • Display: 16-bit display adapter recommended; greater than 4-bit display adapter required

Original document plus Settings equal Signed document
Original
PDF document		   Signing
Settings		   Signed
PDF document
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Original document plus settings plus Signed document
Original
PDF document		   Signing
Settings		   Signed
PDF document
space
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Original document plus Settings equal Signed document
Original
PDF document		   Signing
Settings		   Signed
PDF document
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What is Neevia PDFsign/encrypt?

Neevia PDFsign/encrypt is an advanced software application that can be used to digitally sign and/or encrypt PDF files.

How do I stamp PDF files with Neevia PDFsign/encrypt?

That can be done directly by running the command line tool (CLsign.exe), through the graphic interface applications (PDFsign.exe, PDFencrypt.exe) or indirectly through your own application using the COM object or .NET assembly.

What are the main Neevia PDFsign/encrypt features?

Below are listed the main PDFsign/encrypt features:

  • Sign multiple PDF files in one step;
  • Time-stamp PDF files;
  • Certify PDF files;
  • Flexible signature appearance;
  • Linearization (Fast Web View) support;
  • PDF encryption support (RC4/AES algorithms);
  • Does NOT require any Adobe products;

Can I digitally sign encrypted PDF files using the Neevia PDFsign/encrypt graphic interface tool?

Yes you can but you will be prompted for a password every time an encrypted file is encountered.

What is PDF linearization?

PDF linearization is a way to optimize PDF files for more efficient viewing over the web. Pages are loaded faster and the user does not have to wait until the entire PDF file is uploaded by the browser.

How can I order Neevia PDFsign/encrypt?

You can purchase Neevia PDFsign/encrypt online at https://www.neeviaPDF.com or via the Neevia Tech Sales Department at . For online orders it may take up to 4 business hours to verify and email the licensing info.

How is Neevia PDFsign/encrypt licensed?

Neevia PDFsign/encrypt is licensed per computer.

How much does Neevia PDFsign/encrypt cost?

The cost of one license is US$139. Discounted volume licensing is available - please see the complete pricelist or contact Neevia Tech Sales Department at for more details. We also offer discounted pricing for government and educational institutions.

Is site licensing available for Neevia PDFsign/encrypt?

Yes, Neevia Tech offers a competitive site-licensing program for PDFsign/encrypt. Please contact Neevia Tech Sales Department at for more details on this type of licensing.

Does Neevia Tech offer redistributable licenses for PDFsign/encrypt?

Yes it does. Please contact Neevia Tech Sales Department at for more details on this type of licensing.

What payment and delivery options do I have?

All Neevia products can be bought online or through a purchase order. The main delivery method is via email/download.

Does Neevia offer refunds?

Software is non-refundable. All Neevia products can be fully tested before purchase.

What support is offered if I have any technical questions regarding Neevia PDFsign/encrypt?

Free support for the first year is available to all Neevia customers. Our support department can be reached by submitting a request to . Telephone support is also available - to reach our support department call (954) 893-9343 - 9AM to 5PM EST.

How long does it normally take to receive a response from the support department?

We will respond and solve all technical support issues within two business hours (9AM to 5PM EST). This response time may vary depending on the nature of each issue submitted.

How can I download an evaluation version of Neevia PDFsign/encrypt?

An evaluation version of Neevia PDFsign/encrypt can be downloaded from our website - DOWNLOAD

What are the limitations of the evaluation version?

The evaluation version is a fully functional copy of the licensed product. Files created using the evaluation version will contain a "trial" watermark on every page.

Do I need to uninstall my trial version in order to install the full version after I purchase a license?

No. All you need to do is register the Neevia PDFsign/encrypt with the registration info sent to you after the purchase. This process is fully documented in the Neevia PDFsign/encrypt User's Manual.