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Get Page Annotations from PDF via Go SDK

API for getting annotations to PDF documents with Aspose.PDF Cloud Go SDK

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How to Get Page annotations from PDF documents using Cloud Go SDK

For getting page annotations from PDF documents, we’ll use Aspose.PDF Cloud Go SDK This Cloud Go SDK assists Go programmers in developing cloud-based PDF creator, annotator, editor, and converter apps using Go programming language via Aspose.PDF REST API. Use the following command from the Package Manager Console.

Package Manager Console Command


     
    go get -u github.com/aspose-pdf-cloud/aspose-pdf-cloud-go/v25
     
     

Steps to get Page Annotations using Go

Aspose.PDF Cloud Go developers can easily get annotations to PDF documents. Developers need just a few lines of code.

  1. Uploading the file to cloud storage.
  2. Retrieve Annotations from the Page using GetPageAnnotations().
  3. Search for Text Annotation.
  4. Returns empty result if no match found.
 

This sample code shows getting Page Annotations from PDF document using PDF Cloud Go SDK


    package main

    import (
        "fmt"

        asposepdfcloud "github.com/aspose-pdf-cloud/aspose-pdf-cloud-go/v25"
    )

    func RequestAnnotations(pdf_api *asposepdfcloud.PdfApiService, document_name string, page_num int32, remote_folder string) string {
        // Get annotations from the page in the PDF document.
        UploadFile(pdf_api, document_name)
        args := map[string]interface{}{
            "folder": remote_folder,
        }
        annotation_result := ""
        result, httpResponse, err := pdf_api.GetPageAnnotations(document_name, page_num, args)
        if err != nil {
            fmt.Println(err.Error())
        } else if httpResponse.StatusCode < 200 || httpResponse.StatusCode > 299 {
            fmt.Println("RequestAnnotations(): Failed to delete annotation from the document page.")
        } else {
            for _, annotation := range result.Annotations.List {
                if annotation.AnnotationType == asposepdfcloud.AnnotationTypeText {
                    fmt.Println("RequestAnnotations(): annotation id=", annotation.Id, " with '"+annotation.Contents+"' content get from the document '"+document_name+"' on ", annotation.PageIndex, " page.")
                    annotation_result := annotation.Id
                    return annotation_result
                }
            }
        }
        fmt.Println("RequestAnnotations(): Failed to get annotation in the document.")
        return annotation_result
    }
 

With our Go SDK you can

  • Add PDF document’s header & footer in text or image format.
  • Add tables & text or image stamps to PDF documents.
  • Append multiple PDF documents to an existing file.
  • Work with PDF attachments, annotations, & form fields.
  • Apply encryption or decryption to PDF documents & set a password.
  • Delete all stamps & tables from a page or entire PDF document.
  • Delete a specific stamp or table from the PDF document by its ID.
  • Replace single or multiple instances of text on a PDF page or from the entire document.
  • Extensive support for converting PDF documents to various other file formats.
  • Extract various elements of PDF files & make PDF documents optimized.
  • You can try out our free App to get the annotations from PDF files online and test the functionality.

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