diff --git a/lib/src/main/java/org/asamk/signal/manager/AttachmentStore.java b/lib/src/main/java/org/asamk/signal/manager/AttachmentStore.java
index 28180f12..e3c96ad6 100644
--- a/lib/src/main/java/org/asamk/signal/manager/AttachmentStore.java
+++ b/lib/src/main/java/org/asamk/signal/manager/AttachmentStore.java
@@ -2,8 +2,10 @@ package org.asamk.signal.manager;
 
 import org.asamk.signal.manager.util.IOUtils;
 import org.asamk.signal.manager.util.MimeUtils;
+import org.asamk.signal.manager.util.Utils;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
+import org.whispersystems.signalservice.api.util.StreamDetails;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -39,10 +41,12 @@ public class AttachmentStore {
                 Optional.ofNullable(pointer.getContentType()));
     }
 
-    public File getAttachmentFile(AttachmentPointer pointer) {
-        return getAttachmentFile(SignalServiceAttachmentRemoteId.from(pointer.id()),
-                Optional.ofNullable(pointer.fileName()),
-                Optional.ofNullable(pointer.contentType()));
+    public StreamDetails retrieveAttachment(final String id) throws IOException {
+        final var attachmentFile = new File(attachmentsPath, id);
+        if (!attachmentFile.exists()) {
+            return null;
+        }
+        return Utils.createStreamDetailsFromFile(attachmentFile);
     }
 
     private void storeAttachment(final File attachmentFile, final AttachmentStorer storer) throws IOException {
diff --git a/lib/src/main/java/org/asamk/signal/manager/Manager.java b/lib/src/main/java/org/asamk/signal/manager/Manager.java
index ca79d844..809abea4 100644
--- a/lib/src/main/java/org/asamk/signal/manager/Manager.java
+++ b/lib/src/main/java/org/asamk/signal/manager/Manager.java
@@ -38,6 +38,7 @@ import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 import java.io.Closeable;
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 import java.time.Duration;
 import java.util.Collection;
@@ -272,7 +273,7 @@ public interface Manager extends Closeable {
 
     void addClosedListener(Runnable listener);
 
-    File getAttachmentFile(AttachmentPointer pointer);
+    InputStream retrieveAttachment(final String id) throws IOException;
 
     @Override
     void close() throws IOException;
diff --git a/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java b/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
index 49fe4943..fde1da6c 100644
--- a/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
+++ b/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
@@ -82,6 +82,7 @@ import org.whispersystems.signalservice.internal.util.Util;
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 import java.nio.charset.StandardCharsets;
 import java.time.Duration;
@@ -1147,8 +1148,9 @@ class ManagerImpl implements Manager {
         }
     }
 
-    public File getAttachmentFile(AttachmentPointer pointer) {
-        return context.getAttachmentHelper().getAttachmentFile(pointer);
+    @Override
+    public InputStream retrieveAttachment(final String id) throws IOException {
+        return context.getAttachmentHelper().retrieveAttachment(id).getStream();
     }
 
     @Override
diff --git a/lib/src/main/java/org/asamk/signal/manager/helper/AttachmentHelper.java b/lib/src/main/java/org/asamk/signal/manager/helper/AttachmentHelper.java
index fd77b8fd..b4b0d04b 100644
--- a/lib/src/main/java/org/asamk/signal/manager/helper/AttachmentHelper.java
+++ b/lib/src/main/java/org/asamk/signal/manager/helper/AttachmentHelper.java
@@ -1,6 +1,5 @@
 package org.asamk.signal.manager.helper;
 
-import org.asamk.signal.manager.AttachmentPointer;
 import org.asamk.signal.manager.AttachmentStore;
 import org.asamk.signal.manager.SignalDependencies;
 import org.asamk.signal.manager.api.AttachmentInvalidException;
@@ -14,6 +13,7 @@ import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
+import org.whispersystems.signalservice.api.util.StreamDetails;
 
 import java.io.File;
 import java.io.IOException;
@@ -39,8 +39,8 @@ public class AttachmentHelper {
         return attachmentStore.getAttachmentFile(pointer);
     }
 
-    public File getAttachmentFile(AttachmentPointer pointer) {
-        return attachmentStore.getAttachmentFile(pointer);
+    public StreamDetails retrieveAttachment(final String id) throws IOException {
+        return attachmentStore.retrieveAttachment(id);
     }
 
 
diff --git a/src/main/java/org/asamk/signal/commands/AttachmentCommand.java b/src/main/java/org/asamk/signal/commands/AttachmentCommand.java
index 8afaf030..06a6edda 100644
--- a/src/main/java/org/asamk/signal/commands/AttachmentCommand.java
+++ b/src/main/java/org/asamk/signal/commands/AttachmentCommand.java
@@ -6,14 +6,13 @@ import net.sourceforge.argparse4j.inf.Subparser;
 import org.asamk.signal.commands.exceptions.CommandException;
 import org.asamk.signal.commands.exceptions.UnexpectedErrorException;
 import org.asamk.signal.json.JsonAttachmentData;
-import org.asamk.signal.manager.AttachmentPointer;
 import org.asamk.signal.manager.Manager;
 import org.asamk.signal.output.JsonWriter;
 import org.asamk.signal.output.OutputWriter;
 import org.asamk.signal.output.PlainTextWriter;
 
 import java.io.IOException;
-import java.nio.file.Files;
+import java.io.InputStream;
 import java.util.Base64;
 
 public class AttachmentCommand implements JsonRpcLocalCommand {
@@ -25,14 +24,8 @@ public class AttachmentCommand implements JsonRpcLocalCommand {
 
     @Override
     public void attachToSubparser(final Subparser subparser) {
-        subparser.addArgument("--file-id")
+        subparser.addArgument("--id")
                 .help("The ID of the attachment file.");
-        subparser.addArgument("--file-name")
-                .nargs("?")
-                .help("The name of the file.");
-        subparser.addArgument("--content-type")
-                .nargs("?")
-                .help("The content type of the file.");
     }
 
     @Override
@@ -42,14 +35,11 @@ public class AttachmentCommand implements JsonRpcLocalCommand {
             final OutputWriter outputWriter
     ) throws CommandException {
 
-        final var id = ns.getString("file-id");
-        final var fileName = ns.getString("file-name");
-        final var contentType = ns.getString("content-type");
+        final var id = ns.getString("id");
 
-        final var file = m.getAttachmentFile(new AttachmentPointer(id, fileName, contentType));
+        try(InputStream attachment = m.retrieveAttachment(id)) {
 
-        try {
-            final var bytes = Files.readAllBytes(file.toPath());
+            final var bytes = attachment.readAllBytes();
             final var base64 = Base64.getEncoder().encodeToString(bytes);
 
             if (outputWriter instanceof PlainTextWriter writer) {
@@ -59,7 +49,7 @@ public class AttachmentCommand implements JsonRpcLocalCommand {
                 writer.write(new JsonAttachmentData(base64));
             }
         } catch (IOException ex) {
-            throw new UnexpectedErrorException("An error occurred reading attachment file: " + file, ex);
+            throw new UnexpectedErrorException("An error occurred reading attachment: " + id, ex);
         }
     }
 }
diff --git a/src/main/java/org/asamk/signal/dbus/DbusManagerImpl.java b/src/main/java/org/asamk/signal/dbus/DbusManagerImpl.java
index 94c6b66a..819b2280 100644
--- a/src/main/java/org/asamk/signal/dbus/DbusManagerImpl.java
+++ b/src/main/java/org/asamk/signal/dbus/DbusManagerImpl.java
@@ -2,7 +2,6 @@ package org.asamk.signal.dbus;
 
 import org.asamk.Signal;
 import org.asamk.signal.DbusConfig;
-import org.asamk.signal.manager.AttachmentPointer;
 import org.asamk.signal.manager.Manager;
 import org.asamk.signal.manager.api.AttachmentInvalidException;
 import org.asamk.signal.manager.api.Configuration;
@@ -47,6 +46,7 @@ import org.freedesktop.dbus.types.Variant;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.time.Duration;
@@ -909,9 +909,8 @@ public class DbusManagerImpl implements Manager {
     }
 
     @Override
-    public File getAttachmentFile(final AttachmentPointer pointer) {
-        //TODO may need an implementation
-        return null;
+    public InputStream retrieveAttachment(final String id) throws IOException {
+        throw new UnsupportedOperationException();
     }
 
     @SuppressWarnings("unchecked")