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SignaPDFApp is a desktop application for Windows that allows you to digitally sign PDF documents in an automated and professional way.

It supports PFX/P12 certificates, allows you to define signature profiles, apply time stamps (TSA/LTV) and process large volumes of documents in bulk.

All you need is:

  • A digital certificate in PFX or P12 format
  • The certificate password
  • The PDFs to be signed
    The application takes care of the entire signing and validation process.

SignaPDFApp generates digital signatures that comply with:

  • PAdES-BES / PAdES-B
  • PAdES-EPES
  • PAdES-LTV (if TSA is enabled)
  • eIDAS regulations
  • PDF certification according to ISO 32000

 

This guarantees the legal validity of signatures in Europe.

Yes.
The app allows you to create custom profiles where you define:

  • Signature position (X/Y/width/height)
  • Pages to sign
  • Signature image
  • Document certification
  • Reason and location
  • Input and output folders
  • Integration with TSA/LTV

 

These profiles can be saved and reused.

Yes.
SignaPDFApp is designed for mass processing.
You can:

  • Give a folder of PDFs
  • Select individual files
  • Sign hundreds or thousands in one step

 

Progress and status are displayed in real time.

The application automatically detects:

  • Invalid certificates
  • Incorrect passwords
  • Corrupt PFX/P12 files

 

And notifies the user with a clear message before starting the signature.

Yes.
The application allows you to configure:

  • TSA URL
  • Username and password (if necessary)
  • LTV (Long Term Validation)

 

This guarantees the validity of the signature even if the certificate expires.

  • Each installation of the app is linked to a unique machine identifier (MachineID).
  • The customer sends this code to the provider and receives a license associated with their PC.
  • The application only works if the license is:
    • Valid
    • Digitally signed
    • Assigned to that machine

Yes.
The entire process of:

  • signing,
  • certificate validation,
  • profile application,

 

works offline.

A connection is only required if you want to use an external TSA.

SignaPDFApp

  • It is used to sign batches of PDFs on Windows.
    Ideal for educational centers, agencies, internal administrations.
  • Integrates digital certificate and time stamp.

 

SignaCSVApp

  • It is used to generate and verify secure verification codes (CSV) via the web.
  • Allows third parties to validate documentation online.

 

These are complementary products.

A Secure Verification Code (CSV) is a unique string of characters associated with each issued certificate.

It allows you to verify, through the verification website, that the PDF you have in your hands exactly matches the original kept by the issuing institution.

  1. Locate the CSV code at the bottom of the PDF document.
  2. Access the indicated verification page (usually signapdf.net or the institution’s website). We provide this through a QR code that takes you directly to the verification page or…
  3. Enter the CSV in the form and press “Verify document”.
  4. The system will show you if a valid document has been found and, if applicable, will allow you to open or download the original certified PDF.

If the system returns a message like “No certified document with this CSV code was found” it may be because:

  • The CSV code is misspelled (letter or number changed).
  • The document has not yet been uploaded to the server by the institution.
  • The certificate has been canceled or withdrawn by the issuing body.

 

In these cases, it is recommended to:

  • Re-enter the CSV code carefully.
  • If it continues to fail, contact the institution that issued the document to verify its status.

Yes.
The PDF displayed through CSV verification is the electronic original that the institution has archived.


Because it is digitally signed and linked to a unique CSV code, it has the same legal validity as the paper document (or even greater, depending on the applicable electronic signature regulations).

At the verification level (end user), the system can basically record:

  • The CSV code consulted
  • The date and time of the consultation
  • Optionally, the IP or minimum technical information for security and audit reasons

No sensitive information about the content of the document is saved beyond what is necessary to guarantee traceability and security.
Each institution can define its own records and privacy policy in accordance with the GDPR.

Yes.
Both the web verification app and the generated PDFs are compatible with mobile devices and tablets.

All you need is a modern browser (Chrome, Firefox, Edge, Safari, etc.) and an internet connection to:

  • Enter the CSV code on the verification page
  • Open the certified PDF directly on your device

By default, the CSV does not expire automatically: it remains valid as long as the institution maintains the certificate on its server.
However, each organization can establish its own policy, for example:

  • Keep all certificates indefinitely
  • Delete or archive certificates after a few years
  • Mark certain documents as revoked or replaced

 

If in doubt, always consult the institution that issued the document.

SignaCSVApp (Windows)

  • It is the desktop application installed on the center’s computers.
  • It generates PDF certificates, adds the CSV, the QR and, if necessary, automatically sends them to the institution’s server.
  • It can be integrated with SignaPDFApp to sign documents with digital certificates (idCAT, etc.).

 

Web verification module (WordPress / PHP)

  • It is the part that is installed on the web server (for example, WordPress).
  • It receives verification requests, searches for the PDF by CSV and shows it to the person consulting it.

 

They work together: SignaCSVApp creates and sends, and the web module verifies and displays.

The solution is designed so that each institution stores its own certificates on its own server:

  • The PDFs are stored on the client’s server (WordPress or another PHP environment).
  • The verification module reads directly from this storage.

This allows:

  • Full control over files and data
  • Easier compliance with internal security and GDPR policies
  • Independence from external servers

 

Optionally, a managed hosting scheme could be studied, but the basic philosophy is that the data belongs to the client and is in their environment.

SignaCSVApp allows two configurations:

  • Double signature (e.g., Management + Secretary) in chain.
  • Single signature with a single profile (e.g., Management only).

If the institution prefers a single signature:

  • The application is configured to use only one signature profile.
  • The flow remains the same: the certificate is generated, the digital signature is applied, and the PDF is sent to the server for CSV verification.

 

At the end-user level, CSV verification works the same; what changes is the internal configuration of SignaCSVApp.