--- a/cups/ipp-support.c
+++ b/cups/ipp-support.c
@@ -248,6 +248,10 @@ static const char * const ipp_std_ops[] =
 		{
 		  "CUPS-Get-Document"
 		},
+		* const ipp_alt_ext[] =
+		{
+		  "ALT-DOC-FT-JOB"
+		},
 		* const ipp_tag_names[] =
 		{			/* Value/group tag names */
 		  "zero",		/* 0x00 */
@@ -2145,6 +2145,8 @@ ippOpString(ipp_op_t op)          /* I - Operation ID */
     return (ipp_cups_ops[op - IPP_OP_CUPS_GET_DEFAULT]);
   else if (op >= IPP_OP_CUPS_GET_DOCUMENT && op <= IPP_OP_CUPS_CREATE_LOCAL_PRINTER)
     return (ipp_cups_ops2[op - IPP_OP_CUPS_GET_DOCUMENT]);
+  else if (op == IPP_OP_ALT_DOC_FT_JOB)
+    return (ipp_alt_ext[0]);
 
  /*
   * No, build an "0xxxxx" operation string...
@@ -2090,6 +2096,10 @@ ippOpValue(const char *name)		/* I - Textual name */
     if (!_cups_strcasecmp(name, ipp_cups_ops2[i]))
       return ((ipp_op_t)(i + 0x4027));
 
+  for (i = 0; i < (sizeof(ipp_alt_ext) / sizeof(ipp_alt_ext[0])); i ++)
+    if (!_cups_strcasecmp(name, ipp_alt_ext[i]))
+      return ((ipp_op_t)(i + IPP_OP_ALT_DOC_FT_JOB));
+
   if (!_cups_strcasecmp(name, "Create-Job-Subscription"))
     return (IPP_OP_CREATE_JOB_SUBSCRIPTIONS);
 
--- a/cups/ipp.h
+++ b/cups/ipp.h
@@ -339,7 +339,8 @@ typedef enum ipp_op_e			/**** IPP operations ****/
   IPP_OP_CUPS_AUTHENTICATE_JOB,		/* CUPS-Authenticate-Job: Authenticate a job @since CUPS 1.2/macOS 10.5@ */
   IPP_OP_CUPS_GET_PPD,			/* CUPS-Get-PPD: Get a PPD file @deprecated@ */
   IPP_OP_CUPS_GET_DOCUMENT = 0x4027,	/* CUPS-Get-Document: Get a document file @since CUPS 1.4/macOS 10.6@ */
-  IPP_OP_CUPS_CREATE_LOCAL_PRINTER	/* CUPS-Create-Local-Printer: Create a local (temporary) printer @since CUPS 2.2@ */
+  IPP_OP_CUPS_CREATE_LOCAL_PRINTER,	/* CUPS-Create-Local-Printer: Create a local (temporary) printer @since CUPS 2.2@ */
+  IPP_OP_ALT_DOC_FT_JOB       = 0xF000  /* Alt Linux extension: copy document from one job to another */
 
 #  ifndef _CUPS_NO_DEPRECATED
 #    define IPP_PRINT_JOB			IPP_OP_PRINT_JOB
--- a/scheduler/ipp.c
+++ b/scheduler/ipp.c
@@ -135,6 +135,7 @@ static int	user_allowed(cupsd_printer_t *p, const char *username);
 static void	validate_job(cupsd_client_t *con, ipp_attribute_t *uri);
 static int	validate_name(const char *name);
 static int	validate_user(cupsd_job_t *job, cupsd_client_t *con, const char *owner, char *username, size_t userlen);
+static void	alt_doc_ft_job(cupsd_client_t *con, ipp_attribute_t *uri);
 
 
 /*
@@ -612,6 +612,10 @@ cupsdProcessIPPRequest(
 		create_local_printer(con);
 		break;
 
+	    case IPP_OP_ALT_DOC_FT_JOB :
+                 alt_doc_ft_job(con, uri);
+                 break;
+
 	    default :
 		cupsdAddEvent(CUPSD_EVENT_SERVER_AUDIT, NULL, NULL, "%04X %s Operation %04X (%s) not supported.", IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED, con->http->hostname, con->request->request.op.operation_id, ippOpString(con->request->request.op.operation_id));
 
@@ -11147,6 +11152,86 @@ validate_user(cupsd_job_t    *job,	/* I - Job */
                            con, owner) == HTTP_OK);
 }
 
+static void
+alt_doc_ft_job(cupsd_client_t *con, ipp_attribute_t *uri)
+{
+  ipp_attribute_t *attr;
+  cupsd_job_t *job;
+
+  int fromjob, jobid;
+  int document_number;
+  cups_file_t *fp;
+  int rfd, wfd;
+  char buffer[8192];
+  ssize_t bytes, wbytes;
+  http_status_t status;
+
+  char filename[1024];
+
+  cupsdLogMessage(CUPSD_LOG_DEBUG2, "alt_doc_ft_job(%p[%d], %s)", con, con->number,
+      uri->values[0].string.text);
+
+  /* need check for printer uri */
+
+  if ((attr = ippFindAttribute(con->request, "from-job", IPP_TAG_INTEGER)) == NULL)
+  {
+    send_ipp_status(con, IPP_BAD_REQUEST,
+		     _("Got a printer-uri attribute but no from-job."));
+    return;
+  }
+
+  fromjob = attr->values[0].integer;
+
+  if ((attr = ippFindAttribute(con->request, "job-id", IPP_TAG_INTEGER)) == NULL)
+  {
+    send_ipp_status(con, IPP_BAD_REQUEST,
+                     _("Got a printer-uri attribute but no job-id."));
+    return;
+  }
+
+  jobid = attr->values[0].integer;
+
+  if ((attr = ippFindAttribute(con->request, "document-number", IPP_TAG_INTEGER)) == NULL)
+  {
+    send_ipp_status(con, IPP_BAD_REQUEST,
+	             _("Got a printer-uri attribute but no document-number."));
+    return;
+  }
+
+  document_number = attr->values[0].integer;
+
+  if ((job = cupsdFindJob(jobid)) == NULL)
+  {
+   /*
+    * Nope - return a "not found" error...
+    */
+
+    send_ipp_status(con, IPP_NOT_FOUND, _("Job #%d does not exist."), jobid);
+    return;
+  }
+
+  snprintf(filename, sizeof(filename), "%s/d%05d-%03d", RequestRoot, fromjob, document_number);
+
+  if (con->filename != NULL)
+    cupsdLogMessage(CUPSD_LOG_DEBUG2, "alt_doc_ft_job: con->filename is %s",
+      con->filename);
+  else
+    cupsdLogMessage(CUPSD_LOG_DEBUG2, "alt_doc_ft_job: con->filename is NULL");
+
+
+  con->filename = malloc(strlen(RequestRoot) + 4 + 5 + 1);
+  snprintf(con->filename, sizeof(filename), "%s/tmp%05d", RequestRoot, fromjob);
+
+  if (link(filename, con->filename) == -1)
+  {
+    cupsdLogMessage(CUPSD_LOG_DEBUG2, "alt_doc_ft_job: link: %s", strerror(errno));
+    send_ipp_status(con, IPP_INTERNAL_ERROR,
+	_("Can't make a hardlink in the filesystem."));
+    return;
+  }
+
+  send_document(con, uri);
+}
 
 /*
  * End of "$Id: ipp.c 12851 2015-08-28 13:17:53Z msweet $".