diff --git a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.html b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.html
index 9b727bea3..e900cddfb 100644
--- a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.html
+++ b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.html
@@ -12,22 +12,24 @@
                     "
                     class="selected-text"
                 ></label>
-                <div [ngClass]="isEditingSelectedText ? 'flex relative' : 'flex-align-items-center'">
+                <div [ngClass]="isEditingSelectedText ? 'flex relative' : 'flex-align-items-center'" class="fixed-height">
                     <span *ngIf="!isEditingSelectedText">{{ form.get('selectedText').value }}</span>
                     <textarea
                         *ngIf="isEditingSelectedText"
+                        [rows]="selectedTextRows"
                         class="w-full"
                         formControlName="selectedText"
                         iqserHasScrollbar
                         name="comment"
-                        rows="4"
                         type="text"
                     ></textarea>
                     <iqser-circle-button
-                        (action)="isEditingSelectedText = !isEditingSelectedText"
+                        (action)="toggleEditingSelectedText()"
                         *ngIf="dictionaryRequest"
                         [class.absolute]="isEditingSelectedText"
+                        [showDot]="initialText !== form.get('selectedText').value && !isEditingSelectedText"
                         [tooltip]="'redact-text.dialog.content.edit-text' | translate"
+                        [type]="isEditingSelectedText ? 'dark' : 'default'"
                         class="edit-button"
                         icon="iqser:edit"
                         tooltipPosition="below"
diff --git a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.scss b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.scss
index 66c6bb390..f3381afc3 100644
--- a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.scss
+++ b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.scss
@@ -5,11 +5,18 @@
 
 .selected-text-group > div {
     gap: 0.5rem;
+
+    span {
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+    }
 }
 
 .edit-button {
     top: 0;
     right: calc((0.5rem + 34px) * -1);
+    position: sticky;
 }
 
 .undo-button {
@@ -28,3 +35,11 @@
 .relative {
     position: relative;
 }
+
+.fixed-height {
+    min-height: 40px;
+}
+
+textarea {
+    margin-top: 0;
+}
diff --git a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.ts b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.ts
index 66e8f8c43..3a11a87a2 100644
--- a/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.ts
+++ b/apps/red-ui/src/app/modules/file-preview/dialogs/redact-text-dialog/redact-text-dialog.component.ts
@@ -1,6 +1,6 @@
 import { Component, inject, OnInit } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
-import { FormBuilder } from '@angular/forms';
+import { FormBuilder, UntypedFormGroup } from '@angular/forms';
 import { DetailsRadioOption, IconButtonTypes, IqserDialogComponent } from '@iqser/common-ui';
 import { Dictionary, IAddRedactionRequest, SuperTypes } from '@red/domain';
 import { ActiveDossiersService } from '@services/dossiers/active-dossiers.service';
@@ -12,6 +12,9 @@ import { tap } from 'rxjs/operators';
 import { getRedactOrHintOptions, RedactOrHintOption, RedactOrHintOptions } from '../../utils/dialog-options';
 import { RedactTextData, RedactTextResult } from '../../utils/dialog-types';
 import { LegalBasisOption } from '../manual-redaction-dialog/manual-annotation-dialog.component';
+import { calcTextWidthInPixels } from '@utils/functions';
+
+const MAXIMUM_SELECTED_TEXT_WIDTH = 421;
 
 @Component({
     templateUrl: './redact-text-dialog.component.html',
@@ -21,19 +24,20 @@ export class RedactTextDialogComponent
     extends IqserDialogComponent<RedactTextDialogComponent, RedactTextData, RedactTextResult>
     implements OnInit
 {
+    readonly #manualRedactionTypeExists: boolean;
+    readonly #dossier = inject(ActiveDossiersService).find(this.data.dossierId);
+    #applyToAllDossiers = this.data.applyToAllDossiers ?? true;
     readonly roles = Roles;
     readonly iconButtonTypes = IconButtonTypes;
     readonly options: DetailsRadioOption<RedactOrHintOption>[];
+    readonly form: UntypedFormGroup;
+    readonly initialText: string;
     dictionaryRequest = false;
     legalOptions: LegalBasisOption[] = [];
     dictionaries: Dictionary[] = [];
-    readonly form;
     isEditingSelectedText = false;
-    readonly initialText: string;
     modifiedText: string;
-    readonly #manualRedactionTypeExists: boolean;
-    #applyToAllDossiers = this.data.applyToAllDossiers ?? true;
-    readonly #dossier = inject(ActiveDossiersService).find(this.data.dossierId);
+    selectedTextRows = 1;
 
     constructor(
         private readonly _justificationsService: JustificationsService,
@@ -130,6 +134,14 @@ export class RedactTextDialogComponent
         });
     }
 
+    toggleEditingSelectedText() {
+        this.isEditingSelectedText = !this.isEditingSelectedText;
+        if (this.isEditingSelectedText) {
+            const width = calcTextWidthInPixels(this.form.get('selectedText').value);
+            this.selectedTextRows = Math.ceil(width / MAXIMUM_SELECTED_TEXT_WIDTH);
+        }
+    }
+
     #setDictionaries() {
         this.dictionaries = this._dictionaryService.getRedactTextDictionaries(this.#dossier.dossierTemplateId, !this.#applyToAllDossiers);
     }
diff --git a/apps/red-ui/src/app/utils/functions.ts b/apps/red-ui/src/app/utils/functions.ts
index b63b3aa2a..83190316a 100644
--- a/apps/red-ui/src/app/utils/functions.ts
+++ b/apps/red-ui/src/app/utils/functions.ts
@@ -115,3 +115,21 @@ export function moveElementInArray<T>(array: T[], element: T, index: number) {
     result.splice(index, 0, element);
     return result;
 }
+
+export function calcTextWidthInPixels(text: string): number {
+    const temporaryElement = document.createElement('span');
+    document.body.appendChild(temporaryElement);
+
+    temporaryElement.style.font = 'times new roman';
+    temporaryElement.style.fontSize = 13 + 'px';
+    temporaryElement.style.height = 'auto';
+    temporaryElement.style.width = 'auto';
+    temporaryElement.style.position = 'absolute';
+    temporaryElement.style.whiteSpace = 'no-wrap';
+    temporaryElement.innerHTML = text;
+
+    const width = Math.ceil(temporaryElement.clientWidth);
+    document.body.removeChild(temporaryElement);
+
+    return width;
+}