diff --git a/src/addon/mod/workshop/pages/edit-submission/edit-submission.html b/src/addon/mod/workshop/pages/edit-submission/edit-submission.html
index 4b0f8ce69..cbfb44ba1 100644
--- a/src/addon/mod/workshop/pages/edit-submission/edit-submission.html
+++ b/src/addon/mod/workshop/pages/edit-submission/edit-submission.html
@@ -19,12 +19,12 @@
                 <ion-input name="title" type="text" [placeholder]="'addon.mod_workshop.submissiontitle' | translate" formControlName="title"></ion-input>
             </ion-item>
 
-            <ion-item>
-                <ion-label stacked>{{ 'addon.mod_workshop.submissioncontent' | translate }}</ion-label>
+            <ion-item *ngIf="textAvailable">
+                <ion-label stacked [core-mark-required]="textRequired">{{ 'addon.mod_workshop.submissioncontent' | translate }}</ion-label>
                 <core-rich-text-editor item-content [control]="editForm.controls['content']" formControlName="content" [placeholder]="'addon.mod_workshop.submissioncontent' | translate"  name="content" [component]="component" [componentId]="componentId"></core-rich-text-editor>
             </ion-item>
 
-            <core-attachments *ngIf="workshop.nattachments > 0" [files]="submission.attachmentfiles" [maxSize]="workshop.maxbytes" [maxSubmissions]="workshop.nattachments" [component]="component" [componentId]="workshop.cmid" allowOffline="true" [acceptedTypes]="workshop.submissionfiletypes"></core-attachments>
+            <core-attachments *ngIf="fileAvailable" [files]="submission.attachmentfiles" [maxSize]="workshop.maxbytes" [maxSubmissions]="workshop.nattachments" [component]="component" [componentId]="workshop.cmid" allowOffline="true" [acceptedTypes]="workshop.submissionfiletypes" [required]="fileRequired"></core-attachments>
         </form>
     </core-loading>
 </ion-content>
diff --git a/src/addon/mod/workshop/pages/edit-submission/edit-submission.ts b/src/addon/mod/workshop/pages/edit-submission/edit-submission.ts
index 6afeff9a8..3409680a1 100644
--- a/src/addon/mod/workshop/pages/edit-submission/edit-submission.ts
+++ b/src/addon/mod/workshop/pages/edit-submission/edit-submission.ts
@@ -62,6 +62,10 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
     protected siteId: string;
     protected workshop: any;
     protected isDestroyed = false;
+    protected textAvailable = false;
+    protected textRequired = false;
+    protected fileAvailable = false;
+    protected fileRequired = false;
 
     constructor(navParams: NavParams, sitesProvider: CoreSitesProvider, protected fileUploaderProvider: CoreFileUploaderProvider,
             protected workshopProvider: AddonModWorkshopProvider, protected workshopOffline: AddonModWorkshopOfflineProvider,
@@ -132,6 +136,12 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
     protected fetchSubmissionData(): Promise<void> {
         return this.workshopProvider.getWorkshop(this.courseId, this.module.id).then((workshopData) => {
             this.workshop = workshopData;
+            this.textAvailable = (this.workshop.submissiontypetext != AddonModWorkshopProvider.SUBMISSION_TYPE_DISABLED);
+            this.textRequired = (this.workshop.submissiontypetext == AddonModWorkshopProvider.SUBMISSION_TYPE_REQUIRED);
+            this.fileAvailable = (this.workshop.submissiontypefile != AddonModWorkshopProvider.SUBMISSION_TYPE_DISABLED);
+            this.fileRequired = (this.workshop.submissiontypefile == AddonModWorkshopProvider.SUBMISSION_TYPE_REQUIRED);
+
+            this.editForm.controls.content.setValidators(this.textRequired ? Validators.required : null);
 
             if (this.submissionId > 0) {
                 this.editing = true;
@@ -220,8 +230,19 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
     protected getInputData(): any {
         const submissionId = this.submission.id || 'newsub';
 
-        const values = this.editForm.value;
-        values['attachmentfiles'] = this.fileSessionprovider.getFiles(this.component, this.workshopId + '_' + submissionId) || [];
+        const values = {
+            title: this.editForm.value.title,
+            content: null,
+            attachmentfiles: []
+        };
+
+        if (this.textAvailable) {
+            values.content = this.editForm.value.content || '';
+        }
+
+        if (this.fileAvailable) {
+            values.attachmentfiles = this.fileSessionprovider.getFiles(this.component, this.workshopId + '_' + submissionId) || [];
+        }
 
         return values;
     }
@@ -242,11 +263,15 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
             return false;
         }
 
-        if (this.originalData.title != inputData.title || this.originalData.content != inputData.content) {
+        if (this.originalData.title != inputData.title || this.textAvailable && this.originalData.content != inputData.content) {
             return true;
         }
 
-        return this.fileUploaderProvider.areFileListDifferent(inputData.attachmentfiles, this.originalData.attachmentfiles);
+        if (this.fileAvailable) {
+            return this.fileUploaderProvider.areFileListDifferent(inputData.attachmentfiles, this.originalData.attachmentfiles);
+        }
+
+        return false;
     }
 
     /**
@@ -300,7 +325,10 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
 
             return Promise.reject(null);
         }
-        if (!inputData.content) {
+
+        const noText = this.textUtils.htmlIsBlank(inputData.content);
+        const noFiles = !inputData.attachmentfiles.length;
+        if (this.textRequired && noText || this.fileRequired && noFiles || noText && noFiles) {
             this.domUtils.showAlertTranslated('core.notice', 'addon.mod_workshop.submissionrequiredcontent');
 
             return Promise.reject(null);
@@ -313,7 +341,9 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
             submissionId = this.submission.id;
 
         // Add some HTML to the message if needed.
-        inputData.content = this.textUtils.formatHtmlLines(inputData.content);
+        if (this.textAvailable) {
+            inputData.content = this.textUtils.formatHtmlLines(inputData.content);
+        }
 
         // Upload attachments first if any.
         allowOffline = !inputData.attachmentfiles.length;
@@ -327,6 +357,10 @@ export class AddonModWorkshopEditSubmissionPage implements OnInit, OnDestroy {
             return this.workshopHelper.uploadOrStoreSubmissionFiles(this.workshopId, this.submission.id,
                 inputData.attachmentfiles, this.editing, saveOffline);
         }).then((attachmentsId) => {
+            if (!saveOffline && !this.fileAvailable) {
+                attachmentsId = null;
+            }
+
             if (this.editing) {
                 if (saveOffline) {
                     // Save submission in offline.
diff --git a/src/addon/mod/workshop/providers/sync.ts b/src/addon/mod/workshop/providers/sync.ts
index 2b3990e70..050ead192 100644
--- a/src/addon/mod/workshop/providers/sync.ts
+++ b/src/addon/mod/workshop/providers/sync.ts
@@ -318,6 +318,10 @@ export class AddonModWorkshopSyncProvider extends CoreSyncBaseProvider {
                     }
 
                     return fileProm.then((attachmentsId) => {
+                        if (workshop.submissiontypefile == AddonModWorkshopProvider.SUBMISSION_TYPE_DISABLED) {
+                            attachmentsId = null;
+                        }
+
                         // Perform the action.
                         switch (action.action) {
                             case 'add':
diff --git a/src/addon/mod/workshop/providers/workshop.ts b/src/addon/mod/workshop/providers/workshop.ts
index 5a1a1c5c3..8c22710ef 100644
--- a/src/addon/mod/workshop/providers/workshop.ts
+++ b/src/addon/mod/workshop/providers/workshop.ts
@@ -34,6 +34,9 @@ export class AddonModWorkshopProvider {
     static EXAMPLES_VOLUNTARY: 0;
     static EXAMPLES_BEFORE_SUBMISSION: 1;
     static EXAMPLES_BEFORE_ASSESSMENT: 2;
+    static SUBMISSION_TYPE_DISABLED = 0;
+    static SUBMISSION_TYPE_AVAILABLE = 1;
+    static SUBMISSION_TYPE_REQUIRED = 2;
 
     static SUBMISSION_CHANGED = 'addon_mod_workshop_submission_changed';
     static ASSESSMENT_SAVED = 'addon_mod_workshop_assessment_saved';
@@ -223,6 +226,19 @@ export class AddonModWorkshopProvider {
                 }
 
                 return Promise.reject(null);
+            }).then((workshop) => {
+                // Set submission types for Moodle 3.5 and older.
+                if (typeof workshop.submissiontypetext == 'undefined') {
+                    if (workshop.nattachments > 0) {
+                        workshop.submissiontypetext = AddonModWorkshopProvider.SUBMISSION_TYPE_AVAILABLE;
+                        workshop.submissiontypefile = AddonModWorkshopProvider.SUBMISSION_TYPE_AVAILABLE;
+                    } else {
+                        workshop.submissiontypetext = AddonModWorkshopProvider.SUBMISSION_TYPE_REQUIRED;
+                        workshop.submissiontypefile = AddonModWorkshopProvider.SUBMISSION_TYPE_DISABLED;
+                    }
+                }
+
+                return workshop;
             });
         });
     }