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Adrian Wright

PDF Signer 9.0 Retail Key: How to Sign PDF Documents with Digital Certificates



Download PDF Signer 9.0 Retail Key: A Complete Guide




If you are looking for a reliable and easy-to-use software to sign PDF documents using digital certificates, you might want to consider PDF Signer 9.0. This software allows you to quickly sign multiple PDF files (bulk sign) by selecting input and output directory, or sign individual files using certificates from the Microsoft Certificate Store, smart cards, or USB dongles. You can also customize the signature appearance, add timestamps and encryption, and verify and validate signatures using Adobe Acrobat Reader or PAdES standards.




Download PDF Signer 9.0 Retail Key



In this article, we will show you how to download and install PDF Signer 9.0, how to use it to sign PDF documents, and how to verify and validate signatures. We will also answer some frequently asked questions about PDF Signer 9.0.


What is PDF Signer 9.0 and why do you need it?




PDF Signer 9.0 is a software developed by SecureSoft that allows you to sign PDF documents using X.509 digital certificates. A digital signature is a way of authenticating the identity of the signer and ensuring the integrity of the document. It proves that the document has not been altered after signing and that the signer has agreed to its content.


You might need PDF Signer 9.0 if you want to:



  • Sign contracts, invoices, purchase orders, or other legal documents electronically



  • Comply with regulations or standards that require digital signatures



  • Protect your documents from unauthorized changes or tampering



  • Enhance your professional image and credibility



  • Save time and money by eliminating paper-based processes



PDF Signer 9.0 features and benefits




PDF Signer 9.0 has many features and benefits that make it a great choice for signing PDF documents. Here are some of them:



  • It supports certificates issued on smart cards or USB dongles, as well as certificates from the Microsoft Certificate Store



  • It supports time stamping, which adds a date and time to your signature and proves that the document was signed at a specific point in time



  • It supports SHA 256/512 algorithms and RSA 2048 or higher key length, which are more secure and robust than older algorithms



  • It supports encryption, which adds an extra layer of protection to your document by requiring a password to open it



  • It supports PAdES and PAdES-LTV standards, which are compatible with Adobe Acrobat Reader and ensure long-term validation of signatures even after the certificate expires or is revoked



  • It allows you to configure the signature appearance, such as the size, position, text, image, font, color, etc.



  • It allows you to sign multiple PDF files at once by selecting input and output directory (bulk sign)



  • It has a simple and intuitive user interface that makes it easy to use



  • It has a low price compared to other similar software



How to download and install PDF Signer 9.0




To download and install PDF Signer 9.0, you need to follow these steps:



  • Go to the official website of SecureSoft and click on the "Download" button



  • Choose the version that suits your operating system (Windows or Mac) and click on the "Download" button again



  • Save the file to your computer and run it to start the installation process



  • Follow the instructions on the screen and accept the license agreement



  • Choose the destination folder and click on the "Install" button



  • Wait for the installation to finish and click on the "Finish" button



  • Launch PDF Signer 9.0 from your desktop or start menu



Congratulations, you have successfully downloaded and installed PDF Signer 9.0 on your computer. Now you are ready to sign PDF documents using digital certificates.


How to use PDF Signer 9.0 to sign PDF documents




To use PDF Signer 9.0 to sign PDF documents, you need to have a digital certificate that identifies you as the signer. A digital certificate is a file that contains your name, email address, public key, and other information, as well as a digital signature from a trusted authority that verifies your identity. You can obtain a digital certificate from a certificate authority (CA), such as VeriSign, Comodo, or DigiCert, or you can create your own self-signed certificate using PDF Signer 9.0.


Once you have a digital certificate, you can use PDF Signer 9.0 to sign PDF documents using different methods, depending on where your certificate is stored and how you want to sign your documents. Here are some of the most common methods:


How to create and manage digital certificates




If you don't have a digital certificate from a CA, or if you want to create your own self-signed certificate for testing purposes, you can use PDF Signer 9.0 to create and manage digital certificates. To do so, follow these steps:



  • Open PDF Signer 9.0 and click on the "Certificates" tab



  • Click on the "Create Certificate" button



  • Fill in the required fields, such as your name, email address, organization name, country code, etc.



  • Choose the key length (2048 bits or higher recommended) and the validity period (up to 10 years)



  • Click on the "Create" button



  • Choose a password to protect your private key and click on the "OK" button



  • Choose a location and a file name to save your certificate and click on the "Save" button



You have successfully created a self-signed certificate using PDF Signer 9.0. You can now use it to sign PDF documents. However, keep in mind that self-signed certificates are not trusted by default by other parties, so they might not accept your signature as valid. To make your signature more trustworthy, you need to obtain a certificate from a CA or have your self-signed certificate signed by a CA.


To manage your existing certificates, you can use the "Certificates" tab in PDF Signer 9.0. Here you can view, edit, delete, export, or import certificates from different sources.


How to sign PDF documents using certificates from the Microsoft Certificate Store




If you have a certificate from a CA or a self-signed certificate that is stored in the Microsoft Certificate Store on your computer, you can use PDF Signer 9.0 to sign PDF documents using this method:



  • Open PDF Signer 9.0 and click on the "Sign" tab



  • Click on the "Browse" button and select the PDF document that you want to sign



  • Click on the "Certificate Store" button and select the certificate that you want to use from the list



  • Enter the password for your private key if prompted and click on the "OK" button



  • Configure the signature appearance and position as desired (see below for more details)



  • Click on the "Sign" button and choose a location and a file name to save your signed document



You have successfully signed a PDF document using a certificate from the Microsoft Certificate Store with PDF Signer 9.0.


How to sign PDF documents using certificates from smart cards or USB dongles




If you have a certificate from a CA or a self-signed certificate that is stored on a smart card or a USB dongle, you can use PDF Signer 9.0 to sign PDF documents using this method:



  • Open PDF Signer 9.0 and click on the "Sign" tab



  • Click on the "Browse" button and select the PDF document that you want to sign



  • Insert your smart card or USB dongle into your computer and click on the "Smart Card" button



  • Select the certificate that you want to use from the list and click on the "OK" button



  • Enter the PIN for your smart card or USB dongle if prompted and click on the "OK" button



  • Configure the signature appearance and position as desired (see below for more details)



  • Click on the "Sign" button and choose a location and a file name to save your signed document



You have successfully signed a PDF document using a certificate from a smart card or a USB dongle with PDF Signer 9.0.


How to configure the signature appearance and position




PDF Signer 9.0 allows you to customize the appearance and position of your signature on the PDF document. You can choose from different options, such as:



  • The page number and the location (top, bottom, left, right, center) where you want to place your signature



  • The size (width and height) of your signature in pixels or percentage



  • The text that you want to display next to your signature, such as your name, title, date, reason, etc.



  • The font, color, and alignment of your text



  • The image that you want to use as your signature, such as a scanned signature or a logo



  • The transparency and rotation of your image



To configure the signature appearance and position, you can use the "Appearance" tab in PDF Signer 9.0. Here you can preview your signature and adjust the settings as desired.


How to add timestamps and encryption to your signatures




PDF Signer 9.0 also allows you to add timestamps and encryption to your signatures for extra security and validity. A timestamp is a date and time that is added to your signature by a trusted time stamping authority (TSA). It proves that your document was signed at a specific point in time and prevents backdating or tampering. Encryption is a process that scrambles your document data and makes it unreadable without a password. It protects your document from unauthorized access or modification.


To add timestamps and encryption to your signatures, you can use the "Advanced" tab in PDF Signer 9.0. Here you can:



  • Select a TSA server from the list or enter a custom URL



  • Enter the username and password for the TSA server if required



  • Select the hash algorithm for the timestamp (SHA 256/512 recommended)



  • Select the encryption algorithm for the document (AES 128/256 recommended)



  • Enter the password for opening and modifying the document



  • Select the permissions for printing, copying, or modifying the document



After configuring these settings, you can sign your document as usual and it will be automatically timestamped and encrypted.


How to verify and validate PDF signatures




After signing a PDF document with PDF Signer 9.0, you might want to verify and validate its signature. Verifying a signature means checking its status and properties, such as who signed it, when it was signed, what certificate was used, etc. Validating a signature means checking its authenticity and integrity, such as whether it was issued by a trusted CA, whether it has been revoked or expired, whether it has been modified after signing, etc.


You can verify and validate PDF signatures using different methods, depending on what software or standard you want to use. Here are some of the most common methods:


How to check the signature status and properties




If you want to check the signature status and properties of a PDF document that you signed or received with PDF Signer 9.0, you can use this method:



  • Open PDF Signer 9.0 and click on the "Verify" tab



  • Click on the "Browse" button and select the PDF document that you want to check



  • Click on the "Verify" button and wait for the results



  • You will see a green check mark if the signature is valid, or a red cross if it is invalid



  • You will also see some information about the signature, such as the signer name, date, reason, certificate issuer, etc.



  • You can click on the "Details" button to see more information about the signature, such as the certificate details, the signature hash, the timestamp, etc.



You have successfully checked the signature status and properties of a PDF document with PDF Signer 9.0.


How to use Adobe Acrobat Reader to verify signatures




If you want to use Adobe Acrobat Reader to verify signatures of PDF documents that you signed or received with PDF Signer 9.0, you can use this method:



  • Open Adobe Acrobat Reader and open the PDF document that you want to check



  • Click on the "View" menu and select "Show/Hide" and then "Navigation Panes" and then "Signatures"



  • You will see a panel on the left side of the screen that shows the signatures in the document



  • Click on a signature to see its status and properties



  • You will see a green check mark if the signature is valid, or a red cross if it is invalid



  • You will also see some information about the signature, such as the signer name, date, reason, certificate issuer, etc.



  • You can click on the "Signature Properties" button to see more information about the signature, such as the certificate details, the signature hash, the timestamp, etc.



You have successfully used Adobe Acrobat Reader to verify signatures of PDF documents with PDF Signer 9.0.


How to use PAdES and PAdES-LTV standards for long-term validation




If you want to use PAdES and PAdES-LTV standards for long-term validation of signatures of PDF documents that you signed or received with PDF Signer 9.0, you can use this method:



  • Open PDF Signer 9.0 and click on the "Verify" tab



  • Click on the "Browse" button and select the PDF document that you want to check



  • Click on the "PAdES" button and select the standard that you want to use (PAdES or PAdES-LTV)



  • Click on the "Verify" button and wait for the results



  • You will see a green check mark if the signature is valid, or a red cross if it is invalid



  • You will also see some information about the signature, such as the signer name, date, reason, certificate issuer, etc.



  • You can click on the "Details" button to see more information about the signature, such as the certificate details, the signature hash, the timestamp, etc.



PAdES and PAdES-LTV are standards that are compatible with Adobe Acrobat Reader and ensure long-term validation of signatures even after the certificate expires or is revoked. PAdES stands for PDF Advanced Electronic Signatures and PAdES-LTV stands for PAdES Long Term Validation. They include additional information in the signature, such as revocation status, timestamps, and certificate chain.


You have successfully used PAdES and PAdES-LTV standards for long-term validation of signatures of PDF documents with PDF Signer 9.0.


Conclusion




In this article, we have shown you how to download and install PDF Signer 9.0, how to use it to sign PDF documents using digital certificates from different sources, and how to verify and validate signatures using different methods. We hope that you have found this article useful and informative.


PDF Signer 9.0 is a reliable and easy-to-use software that allows you to sign PDF documents using X.509 digital certificates. It has many features and benefits that make it a great choice for signing PDF documents. You can customize the signature appearance and position, add timestamps and encryption, and verify and validate signatures using Adobe Acrobat Reader or PAdES standards.


If you want to try PDF Signer 9.0 for yourself, you can download it from SecureSoft's website and get a free trial for 30 days. If you like it, you can purchase a retail key for a low price and enjoy unlimited signing of PDF documents.


FAQs




Here are some frequently asked questions about PDF Signer 9.0:



  • What is the difference between a digital signature and an electronic signature?



A digital signature is a type of electronic signature that uses cryptographic techniques to authenticate the identity of the signer and ensure the integrity of the document. An electronic signature is any form of electronic data that indicates agreement or approval of a document or transaction. A digital signature is more secure and reliable than an electronic signature.


  • What are the requirements for a valid digital signature?



A valid digital signature must meet the following requirements:


  • It must be created by a person who has the intent and authority to sign the document



  • It must be based on a valid digital certificate that is issued by a trusted CA or self-signed by the signer



  • It must use a secure and robust algorithm and key length, such as SHA 256/512 and RSA 2048 or higher



  • It must include a timestamp that proves when the document was signed



  • It must not be altered or tampered with after signing



  • It must be verified and validated by the recipient using the appropriate software or standard



  • How can I get a digital certificate from a CA?



To get a digital certificate from a CA, you need to follow these steps:


  • Choose a CA that suits your needs and budget, such as VeriSign, Comodo, or DigiCert



  • Go to the CA's website and select the type of certificate that you want, such as personal, business, or government



  • Fill in the application form with your personal and contact information, such as your name, email address, organization name, country code, etc.



  • Pay the fee for the certificate, which may vary depending on the type, validity period, and level of assurance of the certificate



  • Verify your identity and domain ownership by providing the required documents and proofs, such as your ID card, passport, utility bill, domain name registration, etc.



  • Receive your certificate by email or download it from the CA's website



  • Install your certificate on your computer or device and use it to sign PDF documents



  • How can I renew or revoke my digital certificate?



To renew or revoke your digital certificate, you need to contact the CA that issued your certificate and follow their instructions. You may need to pay a fee for renewing or revoking your certificate. You may also need to provide some information or proofs to confirm your identity and request.


You should renew your certificate before it expires to avoid any problems with signing or verifying documents. You should revoke your certificate if it is compromised, lost, stolen, or no longer needed.


  • What are the advantages and disadvantages of using PDF Signer 9.0?



The advantages of using PDF Signer 9.0 are:



  • It is easy to use and has a simple and intuitive user interface



  • It supports certificates from different sources, such as the Microsoft Certificate Store, smart cards, or USB dongles



  • It allows you to customize the signature appearance and position



  • It supports timestamps and encryption for extra security and validity



  • It supports PAdES and PAdES-LTV standards for long-term validation of signatures



  • It allows you to sign multiple PDF files at once (bulk sign)



  • It has a low price compared to other similar software



The disadvantages of using PDF Signer 9.0 are:



  • It requires a digital certificate to sign PDF documents, which may incur some costs and efforts to obtain and manage



  • It does not support other types of electronic signatures, such as handwritten signatures or biometric signatures



  • It does not support other types of documents, such as Word, Excel, or PowerPoint files



  • It does not have advanced features, such as batch processing, document merging, watermarking, etc.



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