diff --git a/.changeset/lovely-streets-write.md b/.changeset/lovely-streets-write.md
new file mode 100644
index 00000000..82b611e6
--- /dev/null
+++ b/.changeset/lovely-streets-write.md
@@ -0,0 +1,5 @@
+---
+"@imgproxy/imgproxy-js-core": patch
+---
+
+Add pdf and jxl to [format](https://docs.imgproxy.net/usage/processing#format) option
diff --git a/src/options/format.ts b/src/options/format.ts
index b2bdaa3a..b6d7f7a8 100644
--- a/src/options/format.ts
+++ b/src/options/format.ts
@@ -4,6 +4,7 @@ import { guardIsUndef, guardIsValidVal } from "../utils";
 const formatValues = {
   png: true,
   jpg: true,
+  jxl: true,
   webp: true,
   avif: true,
   gif: true,
@@ -12,6 +13,7 @@ const formatValues = {
   bmp: true,
   tiff: true,
   mp4: true,
+  pdf: true,
   best: true,
 };
 
diff --git a/src/options/skipProcessing.ts b/src/options/skipProcessing.ts
index 4e4e85bf..6ba122e4 100644
--- a/src/options/skipProcessing.ts
+++ b/src/options/skipProcessing.ts
@@ -6,6 +6,7 @@ import { guardIsUndef, guardIsNotArray } from "../utils";
 
 const extNames = [
   "jpg",
+  "jxl",
   "png",
   "webp",
   "avif",
diff --git a/src/types/format.ts b/src/types/format.ts
index eae61851..f2cb7875 100644
--- a/src/types/format.ts
+++ b/src/types/format.ts
@@ -5,6 +5,7 @@
  * At the moment, imgproxy supports only the most popular image formats.
  * - `png` — Portable Network Graphics
  * - `jpg` — Joint Photographic Experts Group
+ * - `jxl` — JPEG XL
  * - `webp` — WebP
  * - `avif` — AV1 Image File Format
  * - `gif` — Graphics Interchange Format
@@ -13,6 +14,7 @@
  * - `bmp` — Bitmap
  * - `tiff` — Tagged Image File Format
  * - `mp4` — **PRO feature** MPEG-4
+ * - `pdf` — **PRO feature** PDF document
  * - `best` — **PRO feature** to make imgproxy pick the best format for the
  * resultant image. Check out the {@link https://docs.imgproxy.net/best_format | Best format guide}
  * to learn more.
@@ -25,6 +27,7 @@
 type Format =
   | "png"
   | "jpg"
+  | "jxl"
   | "webp"
   | "avif"
   | "gif"
@@ -33,6 +36,7 @@ type Format =
   | "bmp"
   | "tiff"
   | "mp4"
+  | "pdf"
   | "best";
 
 /**
diff --git a/src/types/skipProcessing.ts b/src/types/skipProcessing.ts
index 6bac1b4d..a1e78eb5 100644
--- a/src/types/skipProcessing.ts
+++ b/src/types/skipProcessing.ts
@@ -23,6 +23,7 @@
  */
 type SkipProcessing = Array<
   | "jpg"
+  | "jxl"
   | "png"
   | "webp"
   | "avif"
diff --git a/tests/optionsBasic/format.test.ts b/tests/optionsBasic/format.test.ts
index c833fc53..9c0be0ee 100644
--- a/tests/optionsBasic/format.test.ts
+++ b/tests/optionsBasic/format.test.ts
@@ -28,7 +28,7 @@ describe("format", () => {
     it("should throw an error if format is invalid", () => {
       // @ts-expect-error: Let's ignore an error (check for users with vanilla js).
       expect(() => build({ format: "invalid" })).toThrow(
-        "format option is invalid. Valid values are: png, jpg, webp, avif, gif, ico, svg, bmp, tiff, mp4, best"
+        "format option is invalid. Valid values are: png, jpg, jxl, webp, avif, gif, ico, svg, bmp, tiff, mp4, pdf, best"
       );
     });
 
diff --git a/tests/optionsBasic/skipProcessing.test.ts b/tests/optionsBasic/skipProcessing.test.ts
index 25488c9c..e61684cb 100644
--- a/tests/optionsBasic/skipProcessing.test.ts
+++ b/tests/optionsBasic/skipProcessing.test.ts
@@ -37,7 +37,7 @@ describe("skipProcessing", () => {
     it("should throw an error if skipProcessing contains unsupported extensions", () => {
       // @ts-expect-error: Let's ignore an error (check for users with vanilla js).
       expect(() => build({ skip_processing: ["tiff", "jpeg"] })).toThrow(
-        "skip_processing option contains unsupported extension. Valid values are: jpg,png,webp,avif,gif,ico,svg,heic,bmp,tiff,pdf,mp4"
+        "skip_processing option contains unsupported extension. Valid values are: jpg,jxl,png,webp,avif,gif,ico,svg,heic,bmp,tiff,pdf,mp4"
       );
     });