One more point: please bear in mind that Acrobat, Reader and some other PDF viewers will create additional links that are not a part of the PDF content, by analysing the page contents. In particular, if a valid URL is seen, there may be a link to it. The rules for this are undocumented, and the PDF does not change; you cannot discover programmatically what has been done.

daitranthanhoaAuthor

Inspiring

Can you give me function name ?

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Test Screen Name

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1. Study the PDF Reference to see the relationship between actions and annotations. There are many types of action, and you seem to be interested in only one type; but you need to check whether there is an action and its type. There are also "additional actions" you can probably ignore for your purposes.

2. See whether you can use PDAction methods to get the information you need. This will be easier than 3.

3. If a the PDAction methods do not give enough information, you need to use the Cos layer; this will require the detailed knowledge from 1.

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Test Screen Name

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By "extract" you mean you want a kind of report? A plugin in C++ could do this. No library, no C#.

daitranthanhoaAuthor

Inspiring

This code get type of annotation is link:

//Get each annotation on the page

for (i2 = 0; i2 < PDPageGetNumAnnots(pdPage); i2++) {

//Get a specific annotation

annot = PDPageGetAnnot(pdPage,i2);

if (PDAnnotIsValid(annot)){

//Display subtype information about the annotation

atom = PDAnnotGetSubtype(annot);

//Cast the ASAtom object to a character pointer

ptr = (char*) ASAtomGetString(atom);

sprintf(buf, "The annotation’s subtype is %s", ptr);

AVAlertNote (buf);

}

How can get link name ( ex: https://forums.adobe.com/ )?

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