I can reference a PDF but not choose its page

Anonymous — Fri, 15 Jun 2018 17:30:24 GMT

Hello,

Apologies in advance if I'm misinterpreting the way PDF references work. I have the following code which creates a PDF definition and reference, but I also want to choose which page to display in the same vein as -PDFATTACH. I haven't been able to find any relevant variables in the PdfDefinition and PdfReference objects. This is the code I have:
(TinyAcad is a helper class I wrote to shorten/simplify certain common tasks)

        private static int PdfNamingCounter = 0;
        private static string NextPdfName = "AttachedPDF_" + PdfNamingCounter;

        ///<summary> Creates PDF definition and reference at the origin. </summary>
        public static ObjectId InsertPDF(string pdfPath, int pdfPage = 1)
        {
            Database db = TinyAcad.WorkingDatabase;

            using (Transaction tr = TinyAcad.NewWorkingDocTransaction)
            {
                DBDictionary nod = (DBDictionary)tr.GetObject(db.NamedObjectsDictionaryId, OpenMode.ForWrite);
                string defDictKey = UnderlayDefinition.GetDictionaryKey(typeof(PdfDefinition));

                if (!nod.Contains(defDictKey))
                {
                    using (DBDictionary dict = new DBDictionary())
                    {
                        nod.SetAt(defDictKey, dict);
                        tr.AddNewlyCreatedDBObject(dict, true);
                    }
                }

                ObjectId pdfDefID;
                DBDictionary pdfDict = (DBDictionary)tr.GetObject(nod.GetAt(defDictKey), OpenMode.ForWrite);

                using (PdfDefinition pdfDef = new PdfDefinition())
                {
                    pdfDef.SourceFileName = pdfPath;
                    while (pdfDict.Contains(NextPdfName)) PdfNamingCounter++;
                    pdfDefID = pdfDict.SetAt(NextPdfName, pdfDef);
                    tr.AddNewlyCreatedDBObject(pdfDef, true);
                }

                ObjectId pdfRefID;
                using (PdfReference pdfRef = new PdfReference())
                {
                    pdfRef.DefinitionId = pdfDefID;
                    pdfRef.Position = new Autodesk.AutoCAD.Geometry.Point3d(0, 0, 0);

                    TinyAcad.AppendToModelSpace(tr, pdfRef);
                    tr.AddNewlyCreatedDBObject(pdfRef, true);
                    pdfRefID = pdfRef.ObjectId;
                }
                tr.Commit();
                return pdfRefID;
            }
        }

Re: I can reference a PDF but not choose its page

rtejada — Fri, 03 May 2019 15:23:27 GMT

Hi ,

I am looking for the same, did you get any hint?

Re: I can reference a PDF but not choose its page

norman.yuan — Fri, 28 Jun 2019 19:56:11 GMT

I have just posted an article on this topic - attaching PDF underlay from PDF file with multiple pages in it:

https://drive-cad-with-code.blogspot.com/2019/06/attach-pdf-underlay-how-to-handle.html

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I can reference a PDF but not choose its page

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