diff --git a/.history/src/modules/services/deepl_20230726092452.ts b/.history/src/modules/services/deepl_20230726092452.ts
new file mode 100644
index 0000000..cd5e9a6
--- /dev/null
+++ b/.history/src/modules/services/deepl_20230726092452.ts
@@ -0,0 +1,25 @@
+import { TranslateTask, TranslateTaskProcessor } from "../../utils/translate";
+
+export const deeplfree = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api-free.deepl.com/v2/translate", data);
+};
+
+export const deeplpro = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api.deepl.com/v2/translate", data);
+};
+
+async function deepl(url: string, data: Required<TranslateTask>) {
+  const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
+    data.raw
+  )}&source_lang=${data.langfrom
+    .split("-")[0]
+    .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+  const xhr = await Zotero.HTTP.request("POST", url, {
+    responseType: "json",
+    body: reqBody,
+  });
+  if (xhr?.status !== 200) {
+    throw `Request error: ${xhr?.status}`;
+  }
+  data.result = xhr.response.translations[0].text;
+}
diff --git a/.history/src/modules/services/deepl_20250610163253.ts b/.history/src/modules/services/deepl_20250610163253.ts
new file mode 100644
index 0000000..fa47ecb
--- /dev/null
+++ b/.history/src/modules/services/deepl_20250610163253.ts
@@ -0,0 +1,65 @@
+import { TranslateTask, TranslateTaskProcessor } from "../../utils/translate";
+
+export const deeplfree = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api-free.deepl.com/v2/translate", data);
+};
+
+export const deeplpro = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api.deepl.com/v2/translate", data);
+};
+
+// async function deepl(url: string, data: Required<TranslateTask>) {
+//   const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
+//     data.raw
+//   )}&source_lang=${data.langfrom
+//     .split("-")[0]
+//     .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+//   const xhr = await Zotero.HTTP.request("POST", url, {
+//     responseType: "json",
+//     body: reqBody,
+//   });
+//   if (xhr?.status !== 200) {
+//     throw `Request error: ${xhr?.status}`;
+//   }
+//   data.result = xhr.response.translations[0].text;
+// }
+
+
+async function deepl(url: string, data: Required<TranslateTask>) {
+  const [key, glossary_id]: string[] = data.secret.split("#");
+  const xhr = await Zotero.HTTP.request("POST", url, {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `DeepL-Auth-Key ${key}`,
+      "User-Agent": `Translate for Zotero/${Zotero.version}-${Zotero.platform}-${version}`,
+    },
+    responseType: "json",
+    body: JSON.stringify({
+      text: [data.raw],
+      source_lang: mapLang(data.langfrom),
+      target_lang: mapLang(data.langto),
+      glossary_id: glossary_id,
+    }),
+  });
+  if (xhr?.status !== 200) {
+    throw `Request error: ${xhr?.status}`;
+  }
+  data.result = xhr.response.translations[0].text;
+}
+
+function mapLang(lang: string) {
+  if (lang in LANG_MAP) {
+    return LANG_MAP[lang];
+  }
+  return lang.split("-")[0].toUpperCase();
+}
+
+const LANG_MAP = {
+  "pt-BR": "PT-BR",
+  "pt-PT": "PT-PT",
+  "zh-CN": "ZH-HANS",
+  "zh-HK": "ZH-HANT",
+  "zh-MO": "ZH-HANT",
+  "zh-SG": "ZH-HANS",
+  "zh-TW": "ZH-HANT",
+} as Record<string, string | undefined>;
\ No newline at end of file
diff --git a/.history/src/modules/services/deepl_20250610163408.ts b/.history/src/modules/services/deepl_20250610163408.ts
new file mode 100644
index 0000000..d0608cc
--- /dev/null
+++ b/.history/src/modules/services/deepl_20250610163408.ts
@@ -0,0 +1,74 @@
+import { TranslateTask, TranslateTaskProcessor } from "../../utils/translate";
+
+export const deeplfree = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api-free.deepl.com/v2/translate", data);
+};
+
+// export const deeplpro = <TranslateTaskProcessor>async function (data) {
+//   return await deepl("https://api.deepl.com/v2/translate", data);
+// };
+
+// async function deepl(url: string, data: Required<TranslateTask>) {
+//   const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
+//     data.raw
+//   )}&source_lang=${data.langfrom
+//     .split("-")[0]
+//     .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+//   const xhr = await Zotero.HTTP.request("POST", url, {
+//     responseType: "json",
+//     body: reqBody,
+//   });
+//   if (xhr?.status !== 200) {
+//     throw `Request error: ${xhr?.status}`;
+//   }
+//   data.result = xhr.response.translations[0].text;
+// }
+
+export const deeplpro = <TranslateTaskProcessor>async function (data) {
+  // See https://github.com/windingwind/zotero-pdf-translate/issues/579
+  return await deepl(
+    data.secret.endsWith("dp")
+      ? "https://api.deepl-pro.com/v2/translate"
+      : "https://api.deepl.com/v2/translate",
+    data,
+  );
+};
+
+async function deepl(url: string, data: Required<TranslateTask>) {
+  const [key, glossary_id]: string[] = data.secret.split("#");
+  const xhr = await Zotero.HTTP.request("POST", url, {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `DeepL-Auth-Key ${key}`,
+      "User-Agent": `Translate for Zotero/${Zotero.version}-${Zotero.platform}-${version}`,
+    },
+    responseType: "json",
+    body: JSON.stringify({
+      text: [data.raw],
+      source_lang: mapLang(data.langfrom),
+      target_lang: mapLang(data.langto),
+      glossary_id: glossary_id,
+    }),
+  });
+  if (xhr?.status !== 200) {
+    throw `Request error: ${xhr?.status}`;
+  }
+  data.result = xhr.response.translations[0].text;
+}
+
+function mapLang(lang: string) {
+  if (lang in LANG_MAP) {
+    return LANG_MAP[lang];
+  }
+  return lang.split("-")[0].toUpperCase();
+}
+
+const LANG_MAP = {
+  "pt-BR": "PT-BR",
+  "pt-PT": "PT-PT",
+  "zh-CN": "ZH-HANS",
+  "zh-HK": "ZH-HANT",
+  "zh-MO": "ZH-HANT",
+  "zh-SG": "ZH-HANS",
+  "zh-TW": "ZH-HANT",
+} as Record<string, string | undefined>;
\ No newline at end of file
diff --git a/.history/src/modules/services/deepl_20250610163541.ts b/.history/src/modules/services/deepl_20250610163541.ts
new file mode 100644
index 0000000..d0608cc
--- /dev/null
+++ b/.history/src/modules/services/deepl_20250610163541.ts
@@ -0,0 +1,74 @@
+import { TranslateTask, TranslateTaskProcessor } from "../../utils/translate";
+
+export const deeplfree = <TranslateTaskProcessor>async function (data) {
+  return await deepl("https://api-free.deepl.com/v2/translate", data);
+};
+
+// export const deeplpro = <TranslateTaskProcessor>async function (data) {
+//   return await deepl("https://api.deepl.com/v2/translate", data);
+// };
+
+// async function deepl(url: string, data: Required<TranslateTask>) {
+//   const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
+//     data.raw
+//   )}&source_lang=${data.langfrom
+//     .split("-")[0]
+//     .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+//   const xhr = await Zotero.HTTP.request("POST", url, {
+//     responseType: "json",
+//     body: reqBody,
+//   });
+//   if (xhr?.status !== 200) {
+//     throw `Request error: ${xhr?.status}`;
+//   }
+//   data.result = xhr.response.translations[0].text;
+// }
+
+export const deeplpro = <TranslateTaskProcessor>async function (data) {
+  // See https://github.com/windingwind/zotero-pdf-translate/issues/579
+  return await deepl(
+    data.secret.endsWith("dp")
+      ? "https://api.deepl-pro.com/v2/translate"
+      : "https://api.deepl.com/v2/translate",
+    data,
+  );
+};
+
+async function deepl(url: string, data: Required<TranslateTask>) {
+  const [key, glossary_id]: string[] = data.secret.split("#");
+  const xhr = await Zotero.HTTP.request("POST", url, {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `DeepL-Auth-Key ${key}`,
+      "User-Agent": `Translate for Zotero/${Zotero.version}-${Zotero.platform}-${version}`,
+    },
+    responseType: "json",
+    body: JSON.stringify({
+      text: [data.raw],
+      source_lang: mapLang(data.langfrom),
+      target_lang: mapLang(data.langto),
+      glossary_id: glossary_id,
+    }),
+  });
+  if (xhr?.status !== 200) {
+    throw `Request error: ${xhr?.status}`;
+  }
+  data.result = xhr.response.translations[0].text;
+}
+
+function mapLang(lang: string) {
+  if (lang in LANG_MAP) {
+    return LANG_MAP[lang];
+  }
+  return lang.split("-")[0].toUpperCase();
+}
+
+const LANG_MAP = {
+  "pt-BR": "PT-BR",
+  "pt-PT": "PT-PT",
+  "zh-CN": "ZH-HANS",
+  "zh-HK": "ZH-HANT",
+  "zh-MO": "ZH-HANT",
+  "zh-SG": "ZH-HANS",
+  "zh-TW": "ZH-HANT",
+} as Record<string, string | undefined>;
\ No newline at end of file
diff --git a/src/modules/services/deepl.ts b/src/modules/services/deepl.ts
index cd5e9a6..d0608cc 100644
--- a/src/modules/services/deepl.ts
+++ b/src/modules/services/deepl.ts
@@ -4,22 +4,71 @@ export const deeplfree = <TranslateTaskProcessor>async function (data) {
   return await deepl("https://api-free.deepl.com/v2/translate", data);
 };
 
+// export const deeplpro = <TranslateTaskProcessor>async function (data) {
+//   return await deepl("https://api.deepl.com/v2/translate", data);
+// };
+
+// async function deepl(url: string, data: Required<TranslateTask>) {
+//   const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
+//     data.raw
+//   )}&source_lang=${data.langfrom
+//     .split("-")[0]
+//     .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+//   const xhr = await Zotero.HTTP.request("POST", url, {
+//     responseType: "json",
+//     body: reqBody,
+//   });
+//   if (xhr?.status !== 200) {
+//     throw `Request error: ${xhr?.status}`;
+//   }
+//   data.result = xhr.response.translations[0].text;
+// }
+
 export const deeplpro = <TranslateTaskProcessor>async function (data) {
-  return await deepl("https://api.deepl.com/v2/translate", data);
+  // See https://github.com/windingwind/zotero-pdf-translate/issues/579
+  return await deepl(
+    data.secret.endsWith("dp")
+      ? "https://api.deepl-pro.com/v2/translate"
+      : "https://api.deepl.com/v2/translate",
+    data,
+  );
 };
 
 async function deepl(url: string, data: Required<TranslateTask>) {
-  const reqBody = `auth_key=${data.secret}&text=${encodeURIComponent(
-    data.raw
-  )}&source_lang=${data.langfrom
-    .split("-")[0]
-    .toUpperCase()}&target_lang=${data.langto.split("-")[0].toUpperCase()}`;
+  const [key, glossary_id]: string[] = data.secret.split("#");
   const xhr = await Zotero.HTTP.request("POST", url, {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `DeepL-Auth-Key ${key}`,
+      "User-Agent": `Translate for Zotero/${Zotero.version}-${Zotero.platform}-${version}`,
+    },
     responseType: "json",
-    body: reqBody,
+    body: JSON.stringify({
+      text: [data.raw],
+      source_lang: mapLang(data.langfrom),
+      target_lang: mapLang(data.langto),
+      glossary_id: glossary_id,
+    }),
   });
   if (xhr?.status !== 200) {
     throw `Request error: ${xhr?.status}`;
   }
   data.result = xhr.response.translations[0].text;
 }
+
+function mapLang(lang: string) {
+  if (lang in LANG_MAP) {
+    return LANG_MAP[lang];
+  }
+  return lang.split("-")[0].toUpperCase();
+}
+
+const LANG_MAP = {
+  "pt-BR": "PT-BR",
+  "pt-PT": "PT-PT",
+  "zh-CN": "ZH-HANS",
+  "zh-HK": "ZH-HANT",
+  "zh-MO": "ZH-HANT",
+  "zh-SG": "ZH-HANS",
+  "zh-TW": "ZH-HANT",
+} as Record<string, string | undefined>;
\ No newline at end of file