C#でpdfをtifに変換したいです

以下のコード確認してみました。

        // Testボタン
        private void buttonTest_Click(object sender, EventArgs e)
        {
            // Acrobat Application
            dynamic acroApp = Activator.CreateInstance(Type.GetTypeFromProgID("AcroExch.App"));
            if (acroApp != null)
            {
                // PDDoc
                dynamic acroPDDoc = Activator.CreateInstance(Type.GetTypeFromProgID("AcroExch.PDDoc"));
                if (acroPDDoc != null)
                {
                    // open
                    if (acroPDDoc.Open(@"C:\Work\Test.pdf"))
                    {
                        // JSObject
                        Object jsObject = acroPDDoc.GetJSObject();
                        if (jsObject != null)
                        {
                            object[] arguments = new object[] { @"C:\Work\Test.tiff", "com.adobe.acrobat.tiff" };
                            Object objresult = jsObject.GetType().InvokeMember("saveAs", BindingFlags.InvokeMethod | BindingFlags.Public | BindingFlags.Instance, null, jsObject, arguments);
                        }
                    }
                }
            }
            return;
        }

これで、Tiff保存できています。

Acrobat JavaScriptのSafe pathの可能性もあるので、Tiffの保存ディレクトリを、D:\ではなくサブディレクトリ以下にして試してみて下さい。

→本来のエラーは、NotAllowedErrorなので、違うかもしれません。

Acrobat JavaScriptのSafe path

https://opensource.adobe.com/dc-acrobat-sdk-docs/library/jsapiref/index.html

====

Safe path

Acrobat 6.0 introduced the concept of a safe path for JavaScript methods that write data to the local hard drive based on a path passed to it by one of its parameters.

A path cannot point to a system critical folder, for example a root, windows or system directory. A path is also subject to other unspecified tests.

For many methods, the file name must have an extension appropriate to the type of data that is to be saved. Some methods may have a no-overwrite restriction. These additional restrictions are noted in the documentation.

Generally, when a path is judged to be not safe, a NotAllowedError exception is thrown (see Error object) and the method fails.

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