c# - How can I embed any file type into Microsoft Word without interop assemblies -

i'm trying how can embed file type microsoft word using openxml 2.0

but using openxml sdk 2.5 (no interop assemblies )

i can embed other word (or office) files using following code sample here
(we need add reference documentformat.openxml nuget , windowsbase)

but i'm having trouble refactoring accept file type (pdf ,mp3 etc)

using documentformat.openxml.packaging; using documentformat.openxml.wordprocessing; using documentformat.openxml; using v = documentformat.openxml.vml; using ovml = documentformat.openxml.vml.office; using system.io;  class program {      static void main(string[] args)     {         //just update following 2 variables point existng files         string containingdocumentpath = @"c:\temp\word\containingdocument.docx";         string embeddeddocumentpath = @"c:\temp\word\embeddeddocument.docx";         createpackage(containingdocumentpath, embeddeddocumentpath);     }      private static void createpackage(string containingdocumentpath, string embeddeddocumentpath)     {         using (wordprocessingdocument package = wordprocessingdocument.create(containingdocumentpath, wordprocessingdocumenttype.document))         {             addparts(package, embeddeddocumentpath);         }     }      private static void addparts(wordprocessingdocument parent, string embeddeddocumentpath)     {         var maindocumentpart = parent.addmaindocumentpart();         generatemaindocumentpart().save(maindocumentpart);          var embeddedpackagepart = maindocumentpart.addnewpart<embeddedpackagepart>("application/vnd.openxmlformats-" + "officedocument.wordprocessingml.document", "rid1");          generateembeddedpackagepart(embeddedpackagepart, embeddeddocumentpath);          var imagepart = maindocumentpart.addnewpart<imagepart>("image/x-emf", "rid2");          generateimagepart(imagepart);     }      private static document generatemaindocumentpart()     {         var element =           new document(             new body(               new paragraph(                 new run(                   new text(                     "this containing document."))),               new paragraph(                 new run(                   new text(                     "this embedded document: "))),               new paragraph(                 new run(                   new embeddedobject(                     new v.shape(                       new v.imagedata()                       {                           title = "",                           relationshipid = "rid2"                       }                     )                     {                         id = "_x0000_i1025",                         style = "width:76.5pt;height:49.5pt",                         ole = truefalseblankvalue.fromboolean(false)//v.booleanentrywithblankvalues.empty                     },                     new ovml.oleobject()                     {                         type = ovml.olevalues.embed,                         progid = "word.document.12",                         shapeid = "_x0000_i1025",                         drawaspect = ovml.oledrawaspectvalues.icon,                         objectid = "_1299573545",                         id = "rid1"                     }                   )                 //{                 //    dxaoriginal = (uint32value)1531ul,                 //    dyaoriginal = (uint32value)991ul                 //}                 )               )             )           );          return element;     }      public static void generateembeddedpackagepart(openxmlpart part, string embeddeddocumentpath)     {         byte[] embeddeddocumentbytes;          // following code generate exception if invalid         // filename passed.         using (filestream fsembeddeddocument = file.openread(embeddeddocumentpath))         {             embeddeddocumentbytes = new byte[fsembeddeddocument.length];             fsembeddeddocument.read(embeddeddocumentbytes, 0, embeddeddocumentbytes.length);         }          using (binarywriter writer =           new binarywriter(part.getstream()))         {             writer.write(embeddeddocumentbytes);             writer.flush();         }     }      public static void generateimagepart(openxmlpart part)     {         #region icon bytes          // best practice icon should stored resource         // in assembly instead of base64 string.          string iconbytes = @"     aqaaagwaaaaaaaaaaqaaagqaaaauaaaaaaaaaaaaaaaodgaagakaacbftuyaaaeabbq     aabaaaaacaaaaaaaaaaaaaaaaaaaaqayaalaeaaa0agaapweaaaaaaaaaaaaaaaaaan     yccacldqyagaaaaawaaaaaaaaagqaaaawaaad///8acgaaakaqaaajaaaaaqaaaeiaa     aagaaaaiwaaaaeaaaagaaaaiaaaaaca/weaaaaaaaaaaaaagd8aaaaaaaaaaaaagd8a     aaaaaaaaap///waaaaaabaaaadqaaacgaaaaabaaacaaaaagaaaakaaaacaaaaagaaa     aaqagaamaaaaaeaaaaaaaaaaaaaaaaaaaaaaaaaaa/waa/waa/waaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaauasv/5f8av9     4yuz/alm8/2zon/9isjl/yegw/2bimp9gsdd/yegw/2bimp9gsdd/yegw/2bimp9gsd     d/yegw/2bimp9gsdd/yegw/2bimp9gsdd/yegw/2bimp9gsdd/yegw/waaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaac6pzb//orf/9/nxp/dxbf/3r2s/964ov/jspj/5boq     /+wzkp/ls5d/5bko/+awi//nr4j/6a2f/+qsgv/rqn//7kd7/+6ld//vo3p/8afv//g     ga//znmj/851l//sby/9gsdd/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaalqllv     /86+h//ovh//zr4f/86+d/++rf//vp3//76d7/++nd//ro3p/759z/+uba//rm2f/65     df/+utw//rj1p/64tp/+eds//ngz//53s7/+d3m//ncyv/528j/9jxl/2bimp8aaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaau6ax//zu5p/77et//o3k//vs5p/77op//ov     i//vr4v/76+d/++rf//vp3//76d3/++jc//rn2v/65tr/+uty//rk1v/54tt/+uht//     rg0f/538//+d7n//ncyv/znwf/yegw/waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     ac7p5j//o/n//zv5//77+b//o/m//zv5v/87ex//o3k//zt5p/87op//ovi//zq4f/8     6t//++re//vo3p/759v/+uba//rl1//65nx/+ult//nh0f/64nd/+t/o//keav9gsdd     /aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaalyomp/88er//php//zx6v/88on//p     dp//zw6p/97+j//o/n//zu5v/87ux//o3k//zs4//87oh/06ml/9koif/rpof/0awg/     9ckhp/po4p/+upv//rh0v/64nd/8abt/2bimp8aaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaavama//3z7f/98+3//fps//3y7p/98+v//flr//zy6v/98er//fhp//zw6p/     87+f//o7m//zt5p/87ep//ovh//vq3//76d3/++jc//rm2f/65nf/+upw//ri0//won     d/yegw/waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaac+qpv//fxv//307//jwaj/4     r+l/+g9o//fu6h/3rme/923np/btzr/2rox/9mxlf/ysjp/166r/9asj//vq43/1kml     /9koif/spoj/0awg//vn2v/65dj/+upw/++jc/9gsdd/aaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaal+rnp/+9vh//fbx//328f/99vh//fbx//718p/99fd//fxw//307/     /98+7//fpt//3y7p/88er//pdp//zv5//87ux//o3k//zr4v/86t//++jd//vn2v/65     dj/7av3/2bimp8aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaawkye//348//99/p/     5swt/+xdq//jwaj/4b6l/+c8ov/euqd/3rmf/923np/ctpr/2rsy/9mylv/ysjp/166     r/9atj//vq43/1kql/9ooiv/76ud/++nd//vn2//tp3v/yegw/waaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaadbrp7//vn1//759f/++fx//vj1//749f/++px//vj1//339     p/+9/p//vfz//338v/99vh//fxw//307v/98+3//plr//zx6f/87+f//o7k//vs4v/7     6ud/++jd/+upf/9gsdd/aaaaaaaaaaaaaaaaaaaaaaaaaaeaaaaaaaaaamkun//++vf     //vr3/+jjsf/nx6//5swt/+xdq//jwqj/4scm/+g+pp/gvkh/3rqf/924np/ctpr/2r     sy/9mylv/ysjt/166r/9atj//vq47//o7l//zs4//76t//6aud/2bimp8aaaaaaaaaa     aaaaaaaaaabaaaabqaaaa0aaaaurpyp/9/c2f/b2nx/1dho/9dlyv/jxcp/xcg//8rg     xp/oysj/8ezp//v28//9+px//vj1//749p/+9/p//fbx//318p/99o3//flr//zx6f/     87+f//o3k//zs4v/orof/yegw/waaaaaaaaaaaaaaaqaaaamaaaaoaaaaigaaadwqgx     b/tlgv/62rqf+tfgv/min0/6kqgv+3p5n/yrus/8ksmf+6oy//3bqh/+c9o//gvkl/3     rqf/924nf/ctpv/27sy/9mylv/ysjt/16+s//zx6f/97+f//o3k/+avi/9gsdd/aaaa     aaaaaabuosxaczwnzww4jnf5vebekhpw6q+dlv/full/3tbs//xx7p/8+pp/+/bv//n     06//48uf/vqmb/9jw1p/r6ob//fr4//77+f/++vj//vn2//749f/99/p//fbx//307/     /98+3//flr//3w6p/87ub/5bgp/2bimp8aaaaaaaaaaixlmpdeuar/vpql/9gmlf///     //////////////+/vz//vz6//369v/8+pp/+/bv//n06//bqpz/v6oo/9kznp/jwaj/     4scn/+g+pp/gvkl/37qg/924nf/ctpv/27sy/9qzlv/98+3//phq//zw6p/ls5l/yeg     w/waaaaaaaaaajk0z8nq2qf+xclj/0720///////68vd/6ms9///////z4t3/2z6t//     369v/8+pp/+/bv/828sp/u0tl/6+no//78+//+/pv//vz6//77+f/++vj//vn2//749     p/99/p//fbx//307v/98u3//fhq/+s1lv9gsdd/aaaaaaaaaacqudbw2bwm/6rtmf+4     jxv///////nx7/+3xex/9+3q//hg3p+zvdv/7ntn//369v/8+pp/2mvb/9hpz//q6oj     //vz8///9/p/ooyh/zqgb/86hgf/ooyh/zqgb/86hgf/ooyh//vxw//307v/98uz/4r     ea/2bimp8aaaaaaaaaajjsofdytkt/ok8s/6rot////////v38/6rhj/+/fwf/79/z/     6dnl/+5cln//pj1//369v/j2nh/z87n/+no5//+/fz///38//pkqv/mvql/58on/+e/     pp/is5p/5lax/86hgf/+9vh//ftv//3z7f/huzz/yegw/waaaaaaaaaalfu88nizpf+     ityz/keum////////////n0gk/8wqev/il4p/oeon/9wwop/ooo///vz6//dq5f/my8     v/6ofn//79/f///v3/88qq/9mpip/fspl/5bmb/+cxkv/kt5n/zqgb//728v/99vd//     fpu/+g6n/9gsdd/aaaaaaaaaacwwd/w2lsl/6rplf+lorb/8evp//////+lvtp/6dbo     /7frtv+fssb//v38/69nsf/v4dn/+/j2/8niyp/m5ex//fz8///+/f/zyqr/6cgl/+j     dqp/mvql/3q+o/+o4mf/ooyh//vfz//328f/99e//37uh/2bimp8aaaaaaaaaajlbqf     dmy8h/x451/7f3x//h1c//+/j3/6zxnv/vskd/7+hc/6zxnv//////wyly/7yaz//+/     vz/y8rk/+xk5p/9/pz///79//pkqv/049f/7njk//v18p/kwqr/48gn/+k/pf/eu6x/     3rul/967pf/fvkp/yegw/waaaaaaaaaam15e8onqx//pmox/vyzx/9bcuv/59ph/69j     r/+zb1p/////////////////////////////////r0nd/5etk//z7+////v3/88qq//     359v/+/f3/69fj/76snf+mdmp/ihje/4frv/96y07/cltf/2ptpp9gsdd/aaaaaaaaa     acvxepk59dg/9eql//ilh//z7oo////////////////////////////////////////     /////////+df3//p6oj//fz8///+/f/zyqr///////v07//049f/v62d/+zsv//qzrv     /58q1/+terv/hvqn/yegw/yukjckaaaaaaaaaag1em6xvskh/8n3w/9sij//vsal///     ////////////////////38/p/x6ex/8+zq//tv7v/cysl/9ppz//v6+v/+/f3///7+/     /pkqv/zyqr/88qq//pkqv/brp///+7k//vo3p/03td/7ttd/2bimp8ljcqpgbgxggaa     aaaaaaaaibqpmkhrufzkyl7/8uda/9kllp/spzt/0qwu/9wol//xqzj/16my/9iqmp/     spzt/0qwu/7webv/8+/v//v39///+/v///v7///79//7+/f///fz///37/8kwop//7u     t/++jc//xe0p9ltjb/jsqkkrgyfxoaaaaaaaaaaaaaaaaaaaaaqskgykzruvburp//9     exf//tk3v/05n7/9ote//xl3//15d//9exf//xl3//15d//u4hz//79/f///v7///7+     ///+/v///v3///39///9/p///fv/xlkj///u5p/76nz/bfu+/yukjckygbcaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaafg4lixfjokwczu3kr3jx/69yv/+vclf/r3jx/69yv/     +vclf/r3jx/69yv/+9i3t///7+///+/v///v7///7+///+/v///v3///39///9/p/gt     kt//+7k/4nuwf8ljcqpgbgxggaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaadrv7h////////////////////////////////////////////////////     ////+/v////7///7+///+/v///f3///38/8i1pf+chnt/jsqkkrgyfxoaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaang/sf/rv7h/0b+x/9g/s     f/qvrd/z72v/8+9r//pvk7/zbut/827rp/nuaz/zlmr/8u4qv/kt6n/yreo/8m2p//i     tqf/ybam/yukjckxfxczaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaayaaaadaaaaaaaaaisaaaadaaaaaeaaabsaaaacaeaaaea     aad1////aaaaaaaaaaaaaaaakaeaaaaaaaaaqaaivabhaggabwbtageaaaaaaaaaaaa     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat310cq     aa3lmcwf//aady4qaaaabkwczmmadasrnzaaaaaaaaaadwtaoaaaaaaekazlkaaaaav     eqzwqaaaadldgrzaacjaxznmaaabi8bfocwaaaaaaaaaaaaaaaaaaaaiqfcf0dabaaa     agzmmaaxdgrzagaaaafkt33o5taaaaaaadd6maa0mdn3bztgcv7///8qtjd3iu83dwa     azfkaaaaadakaamzmmaaaaaaawoywapw4lnba5jaab7kudgaazfkaaaaaaabkwqaaaa     dc5jaa3oywacdnmaahzr9ybqaaanzmmaaabi8bfocwaaaaaaakaaaa3lmcwsa3a1lkd     gaiaaaaacuaaaamaaaaaqaaafqaaac0aaaaaaaaaciaaabkaaaalgaaaaeaaaaaaa1c     aaanqgaaaaaiaaaaeqaaaewaaaaeaaaaaaaaaaaaaabmaaaaqgaaahaaaabfag0aygb     lagqazablagqaiabeag8aywb1ag0azqbuahqaaaagaaaacaaaaayaaaagaaaabgaaaa     yaaaagaaaabgaaaamaaaahaaaabgaaaauaaaagaaaacaaaaayaaaagaaaabaaaacuaa     aamaaaadqaageyaaaagaaaaegaaaekaywbvag4atwbuagwaeqaaaaaargaaadaaaaak     aaaarqbtagiazqbkagqazqbkacaarabvagmadqbtaguabgb0aaaargaaagaaaabuaaa     aqwa6afwauabsae8arwbsaeeafgaxafwatqbjaemaugbpafmafgaxafwatwbmagyaaq     bjaguamqayafwavwbjae4avwbpafiaraauaeuawabfaaaargaaabaaaaaeaaaaaqaaa     eyaaaagaaaaegaaaekaywbvag4atwbuagwaeqaaaaaadgaaabqaaaaaaaaaeaaaabqa     aaa=";          #endregion          using (binarywriter writer = new binarywriter(part.getstream()))         {             writer.write(system.convert.frombase64string(iconbytes));             writer.flush();         }     } } 

here code work types, on windows box, requires ole technology. in fact depends on how machine configured, because of ole intimacy, need try bit.

this sample code creates .docx file:

// make sure running in sta thread (for example, mark main stathread attribute)  // file want embed string embeddeddocumentpath = @"c:\mypath\myfile.txt";  // temp file created, , embedded in final .docx     string packagepath = @"c:\temp\test.bin";  // temp image file created , embedded in final .docx string packageiconpath = @"c:\temp\test.emf";  // package embeddeddocumentpath -> create 2 openxml embeddings packager.packagefile(packagepath, packageiconpath, embeddeddocumentpath);  // create word doc using (var doc = wordprocessingdocument.create(@"c:\mypath\containingdocument.docx", wordprocessingdocumenttype.document)) {     var main = doc.addmaindocumentpart();      // add icon embedding     var imagepart = main.addimagepart(imageparttype.emf);     imagepart.feeddata(file.openread(packageiconpath));      // add package embedding     var objectpart = main.addembeddedobjectpart("application/vnd.openxmlformats-officedocument.oleobject");     objectpart.feeddata(file.openread(packagepath));      // build sample doc     main.document = builddocument(main.getidofpart(imagepart), main.getidofpart(objectpart), "package"); }  private static document builddocument(string imagepartid, string objpartid, string progid) {     var shapeid = "r" + guid.newguid().tostring("n");  // come unique name...      var element =       new document(         new body(           new paragraph(new run(new text("this containing document."))),           new paragraph(new run(new text("this embedded document: "))),           new paragraph(             new run(               new embeddedobject(                 new v.shape(                     new v.imagedata                     {                         relationshipid = imagepartid,   // rel image part                         title = ""                      // important!                     })                     {                         id = shapeid                     },                 new ovml.oleobject                 {                     type = ovml.olevalues.embed,                     drawaspect = ovml.oledrawaspectvalues.icon,                     progid = progid,    // com progid                     id = objpartid,     // rel embedded part                     shapeid = shapeid,  // link shape                     objectid = "r" + guid.newguid().tostring("n") // come unique name...                 }                   )))           )       );     return element; } 

and here utility code create package , image (emf) file input file. now, pdf, code may fail (like said depends if installed adobe reader or not, version, etc.). if fails on olecreatefromfile, may try create/add registry key named 'packageonfiledrop' this:

hkey_classes_root\acroexch.document.dc\packageonfiledrop 

i'm not sure why pdf files don't support olecreatefromfile directly (undercovers, if have installed acrobat reader, handled acrord32.exe com server provider adobe), think may security feature, , don't know how word circumvents this...

public static class packager {   public static void packagefile(string outputfile, string outputimagefile, string inputfile)   {       if (outputfile == null)           throw new argumentnullexception(nameof(outputfile));        if (outputimagefile == null)           throw new argumentnullexception(nameof(outputimagefile));        if (inputfile == null)           throw new argumentnullexception(nameof(inputfile));        istorage storage;       checkhr(stgcreatestorageex(           outputfile,           stgm_create | stgm_readwrite | stgm_share_exclusive,           stgfmt_docfile,           0,           intptr.zero,           intptr.zero,           typeof(istorage).guid,           out storage));        // note 1: if 'use of ole1 services requiring dde windows disabled' error, make sure executing thread sta       //       // note 2: if want packager succeed on pdf files instead of reporting 0x8000ffff (e_unexpected), make sure       // there exists key named "packageonfiledrop", this: hkey_classes_root\acroexch.document.dc\packageonfiledrop       //       idataobject ps; // system.runtime.interopservices.comtypes       checkhr(olecreatefromfile(           guid.empty,           inputfile,           typeof(idataobject).guid,           0,           intptr.zero,           intptr.zero,           storage,           out ps));        var format = new formatetc();       format.cfformat = cf_enhmetafile;       format.dwaspect = dvaspect.dvaspect_content;       format.lindex = -1;       format.tymed = tymed.tymed_enhmf;        stgmedium medium;       ps.getdata(ref format, out medium);        copyenhmetafile(medium.unionmember, outputimagefile);       deleteenhmetafile(medium.unionmember);        storage.commit(0);       marshal.finalreleasecomobject(ps);       marshal.finalreleasecomobject(storage);   }    private static void checkhr(int hr)   {       if (hr != 0)           throw new win32exception(hr);   }    [interfacetype(cominterfacetype.interfaceisiunknown), guid("0000000b-0000-0000-c000-000000000046")]   private interface istorage   {       void _vtblgap1_6(); // need commit       void commit(int grfcommitflags);   }    [dllimport("ole32.dll")]   private static extern int stgcreatestorageex(       [marshalas(unmanagedtype.lpwstr)] string pwcsname,       int grfmode,       int stgfmt,       int grfattrs,       intptr pstgoptions,       intptr reserved2,       [marshalas(unmanagedtype.lpstruct)] guid riid,       out istorage ppobjectopen);    [dllimport("ole32.dll")]   private static extern int olecreatefromfile(       [marshalas(unmanagedtype.lpstruct)] guid rclsid,       [marshalas(unmanagedtype.lpwstr)] string lpszfilename,       [marshalas(unmanagedtype.lpstruct)] guid riid,       int renderopt,       intptr lpformatetc,       intptr pclientsite,       istorage pstg,       out idataobject ppstg       );    [dllimport("gdi32.dll", setlasterror = true)]   private static extern bool deleteenhmetafile(intptr hemf);    [dllimport("gdi32.dll", charset = charset.unicode, setlasterror = true)]   private static extern intptr copyenhmetafile(intptr hemfsrc, string lpszfile);    private const int cf_enhmetafile = 14;   private const int stgm_readwrite = 2;   private const int stgm_share_exclusive = 0x10;   private const int stgm_create = 0x1000;   private const int stgfmt_docfile = 5; }