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1/24/20

How can I create signature widget appearance from PDF content stream?

Question: We have a custom appearance in vector form and we want to use it as a custom appearance for

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How can I create signature widget appearance from PDF content stream?

Question: We have a custom appearance in vector form and we want to use it as a custom appearance for

1/24/20

6/4/19

How to delete a specific digital signature field?

Question: How to completely remove a single Digital Signature field, while leaving other exiting

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How to delete a specific digital signature field?

Question: How to completely remove a single Digital Signature field, while leaving other exiting

6/4/19

5/16/19

How to remove digital signatures?

Question: We have PDF files that cannot be edited because they have been digitally signed. It is more

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How to remove digital signatures?

Question: We have PDF files that cannot be edited because they have been digitally signed. It is more

5/16/19

ch.gru...@gmail.com, Shakthi Wijeratne6

1/18/19

Add Digital Signature on Stamp Annotations

Hello, apologies for the delay in response. To create a signature annotation and field, you must do a

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Add Digital Signature on Stamp Annotations

Hello, apologies for the delay in response. To create a signature annotation and field, you must do a

1/18/19

Euan Carmichael

3/7/18

How to add Long Term Validation data to a PDF file

Question: I have a PDF file that I would like to add Long Term Validation (LTV) to, how can this be

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How to add Long Term Validation data to a PDF file

Question: I have a PDF file that I would like to add Long Term Validation (LTV) to, how can this be

3/7/18

8/23/17

How to retrieve image data from Signature field?

Question: I'm using PDFNet for Windows Universal Apps and I am trying to collect form field data.

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How to retrieve image data from Signature field?

Question: I'm using PDFNet for Windows Universal Apps and I am trying to collect form field data.

8/23/17

4/29/19

How to add the time to a Digital Signature?

Ruby version sigDict = sigField.UseSignatureHandler(sigHandlerId) now = PDFNetRuby::Date.new now.

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How to add the time to a Digital Signature?

Ruby version sigDict = sigField.UseSignatureHandler(sigHandlerId) now = PDFNetRuby::Date.new now.

4/29/19

1/15/16

What are the different types of digital signatures that can be added to a PDF using PDFNet?

Answer: There are two types of digital signatures in a PDF. Author Signature : Zero or One Approval/

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What are the different types of digital signatures that can be added to a PDF using PDFNet?

Answer: There are two types of digital signatures in a PDF. Author Signature : Zero or One Approval/

1/15/16

1/8/16

How do I use PDFDCEX to generate custom appearance for digital signature field?

Q: I want to use PDFDCEX interface to generate the visual appearance of a digital signature field,

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How do I use PDFDCEX to generate custom appearance for digital signature field?

Q: I want to use PDFDCEX interface to generate the visual appearance of a digital signature field,

1/8/16

11/20/15

How to show the digital signature view immediately after a tap (iOS)

Q: We creating an app for signing pdf files legally. I have the PDFNet framework that I have to

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How to show the digital signature view immediately after a tap (iOS)

Q: We creating an app for signing pdf files legally. I have the PDFNet framework that I have to

11/20/15

7/23/15

Can I use the same SignatureHandler instance when signing multiple fields?

Question: I want to sign a PDF with multiple fields using the same SignatureHandler instance. When I

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Can I use the same SignatureHandler instance when signing multiple fields?

Question: I want to sign a PDF with multiple fields using the same SignatureHandler instance. When I

7/23/15

7/2/15

Why are there extra zeroed bytes added when signing a PDF?

Question: We have noticed that when we sign a PDF with PDFNet, the signature always has 64 more bytes

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Why are there extra zeroed bytes added when signing a PDF?

Question: We have noticed that when we sign a PDF with PDFNet, the signature always has 64 more bytes

7/2/15

4/14/15

Why does signing a document seem to change the document permissions?

Q: I've set the security permissions on my document to allow Document Assembly (adding/removing

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Why does signing a document seem to change the document permissions?

Q: I've set the security permissions on my document to allow Document Assembly (adding/removing

4/14/15

10/28/14

Why does adding a second signature field and signing it invalidate the signature on my document?

Q: I have a document which I've signed and saved. Then, I add a new form field and signature and

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Why does adding a second signature field and signing it invalidate the signature on my document?

Q: I have a document which I've signed and saved. Then, I add a new form field and signature and

10/28/14

10/10/14

Can I save twice to the same stream?

Q: I'm signing a document twice, and each time saving to a memory stream incrementally. My code

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Can I save twice to the same stream?

Q: I'm signing a document twice, and each time saving to a memory stream incrementally. My code

10/10/14

Morne Scholtz, … James4

9/15/14

iOS - How to programmatically select a signature(with AnnotEditTool)

Thanks guys, No problem, I will use the simulation of a gesture recogniser for now and look out for

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iOS - How to programmatically select a signature(with AnnotEditTool)

Thanks guys, No problem, I will use the simulation of a gesture recogniser for now and look out for

9/15/14

9/6/14

How do I check if PDF signature is valid ?

Q: I am working in a project that creates signatures and digitally signs PDF. I am very pleased with

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How do I check if PDF signature is valid ?

Q: I am working in a project that creates signatures and digitally signs PDF. I am very pleased with

9/6/14

2/18/14

How Do I Sign a PDF Using Smart Cards or Hardware Security Module?

Question: How Do I Sign a PDF Using Smart Cards or Hardware Security Module? Is it possible to do so

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How Do I Sign a PDF Using Smart Cards or Hardware Security Module?

Question: How Do I Sign a PDF Using Smart Cards or Hardware Security Module? Is it possible to do so

2/18/14

Vincent Ycasas, Support2

1/30/14

What Type of Certificates Should We Use for Digital Signatures?

You will want to make sure that the cert provider is listed as part of Adobe Approved Trust List (

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What Type of Certificates Should We Use for Digital Signatures?

You will want to make sure that the cert provider is listed as part of Adobe Approved Trust List (

1/30/14

Aaron Gravesdale

12/23/13

How do I find a digital signature's byte offset in the pdf?

Q: I have a question regarding the DigitalSignaturesTest sample. Is it possible to calculate the

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How do I find a digital signature's byte offset in the pdf?

Q: I have a question regarding the DigitalSignaturesTest sample. Is it possible to calculate the

12/23/13

Vincent Ycasas, Ryan2

9/26/16

How to Obtain the Digital Signature From a Signed PDF Document?

Question: How do I get the date, location, name, etc. of the signature? Answer: While the digital

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How to Obtain the Digital Signature From a Signed PDF Document?

Question: How do I get the date, location, name, etc. of the signature? Answer: While the digital

9/26/16

5/8/17

Does PDFNet's Digital Signatures API conform to PAdES Standard?

Question: Does PDFNet's digital signatures API conform to PAdES standard? Answer: PDFNet's

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Does PDFNet's Digital Signatures API conform to PAdES Standard?

Question: Does PDFNet's digital signatures API conform to PAdES standard? Answer: PDFNet's

5/8/17

florian....@gmail.com, Support2

7/15/13

Setting Appearance: signing pdf files with a pkcs12 certificate

Hi Florian, Yes you can create and set appearance to be text, or a path, or any type of PDF graphics.

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Setting Appearance: signing pdf files with a pkcs12 certificate

Hi Florian, Yes you can create and set appearance to be text, or a path, or any type of PDF graphics.

7/15/13

Support, … Vincent Ycasas3

6/20/17

How do I check if all signature fields on a PDF form have been signed?

It is possible that it returns an empty dictionary. If such is the case, then field.GetValue() will

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How do I check if all signature fields on a PDF form have been signed?

It is possible that it returns an empty dictionary. If such is the case, then field.GetValue() will

6/20/17

Vincent Ycasas2

5/1/13

Removing Digital Signatures From a PDF Document

Answer: Depending on a given use case scenario, removing a signature field would involve the

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Removing Digital Signatures From a PDF Document

Answer: Depending on a given use case scenario, removing a signature field would involve the

5/1/13

Vincent Ycasas2

4/17/13

How do I add timestamps when signing a PDF document?

Answer: Assuming you are referring to the time stamp that is attached to the signature dictionary (

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How do I add timestamps when signing a PDF document?

Answer: Assuming you are referring to the time stamp that is attached to the signature dictionary (

4/17/13

Support, Anderson Konzen2

4/22/14

PDF digital signatures for iOS & Android and some licensing questions

Update: Starting with version 6.1.0 of the Android PDFNet SDK, the Tools library is now shipped as an

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PDF digital signatures for iOS & Android and some licensing questions

Update: Starting with version 6.1.0 of the Android PDFNet SDK, the Tools library is now shipped as an

4/22/14

11/26/12

Incremental PDF saving for digital signatures.

Q: I try to sign a PDF document with two or more signatures in my solution. It seems that Acrobat

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Incremental PDF saving for digital signatures.

Q: I try to sign a PDF document with two or more signatures in my solution. It seems that Acrobat

11/26/12

10/4/12

Digitally sign a PDF on iOS / Android

Q: Can you describe what the APIs for PDF digital signatures, with what backends it works with, what

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Digitally sign a PDF on iOS / Android

Q: Can you describe what the APIs for PDF digital signatures, with what backends it works with, what

10/4/12

9/13/12

Re: Image in Text Field

You can add an image to a text field via a custom apperance (annot.SetAppearance()). Please, check

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Re: Image in Text Field

You can add an image to a text field via a custom apperance (annot.SetAppearance()). Please, check

9/13/12

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