diff --git a/package.json b/package.json
index 0f6c4d7..529272c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "html-textify",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "Convert html to plain text",
   "main": "dist/index.js",
   "module": "dist/index.mjs",
diff --git a/src/index.ts b/src/index.ts
index 044e3b2..c9eaaeb 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -42,15 +42,17 @@ export function textify({
 }: TextifyOptions): string {
   if (!html) return '';
 
+  let output = html;
+
   // Strip or preserve HTML formatting
   if (preserveFormatting) {
-    html = preserveFormat({ html, ignoreTags });
+    output = preserveFormat({ html: output, ignoreTags });
   } else {
     if (ignoreTags.length === 0) {
-      html = html.replace(/<[^>]+>/g, '').trim();
+      output = output.replace(/<[^>]+>/g, '').trim();
     } else {
       const IG = new Set(ignoreTags.map((t) => t.toLowerCase()));
-      html = html
+      output = output
         .replace(/<\/?([a-z][a-z0-9-]*)\b[^>]*>/gi, (match, tag) =>
           IG.has(tag.toLowerCase()) ? match : ''
         )
@@ -60,10 +62,10 @@ export function textify({
 
   // Wrap output text (word-based wrapping takes priority)
   if (wrapWords && wrapWords > 0) {
-    html = wrapByWords(html, wrapWords);
+    output = wrapByWords(output, wrapWords);
   } else if (wrapLength && wrapLength > 0) {
-    html = wrapByLength(html, wrapLength);
+    output = wrapByLength(output, wrapLength);
   }
 
-  return html;
+  return output;
 }
diff --git a/src/utils/preserveFormat.test.ts b/src/utils/preserveFormat.test.ts
index 27a3ebe..c395159 100644
--- a/src/utils/preserveFormat.test.ts
+++ b/src/utils/preserveFormat.test.ts
@@ -105,6 +105,11 @@ describe('preserveFormat', () => {
     );
   });
 
+  it('should handle nested tags', () => {
+    const html = '<b><i>text</i></b>';
+    expect(preserveFormat({ html })).toBe('***text***');
+  });
+
   it('should handle complex nested content', () => {
     const html = `<h1>Main Heading</h1>
     <p>Paragraph with <b>bold</b> and <i>italic</i> text</p>
diff --git a/src/utils/preserveFormat.ts b/src/utils/preserveFormat.ts
index 07524e3..e86ecc8 100644
--- a/src/utils/preserveFormat.ts
+++ b/src/utils/preserveFormat.ts
@@ -9,7 +9,7 @@ interface PreserveFormatOptions {
  * - Converts `<br>` to newline.
  * - Wraps bold (`<b>`, `<strong>`) in `**`.
  * - Wraps italic (`<i>`, `<em>`) in `*`.
- * - Converts links `<a href="...">text</a>` to `text (url)`.
+ * - Converts links `<a href="...">text</a>` to `[text] (url)`.
  * - Formats lists (`<ol>`, `<ul>`) and list items.
  * - Formats blockquotes (`<blockquote>`) with `> ` prefix.
  * - Converts tables to tab-delimited rows.
diff --git a/src/utils/wrapByWords.ts b/src/utils/wrapByWords.ts
index 1117671..1a5f73c 100644
--- a/src/utils/wrapByWords.ts
+++ b/src/utils/wrapByWords.ts
@@ -10,6 +10,9 @@
  * // => "one two\nthree four\nfive"
  */
 export function wrapByWords(text: string, count: number): string {
+  if (count <= 0) {
+    throw new Error('wrap count must be greater than 0');
+  }
   const words = text.trim().split(/\s+/);
   const lines: string[] = [];