diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Catalog.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Catalog.java
index 89966f3..dfc620b 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Catalog.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Catalog.java
@@ -83,7 +83,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         baos.write(
             new FormattedText(
@@ -93,7 +93,7 @@ public byte[] asBytes() throws Exception {
                 this.pages.reference()
             ).asString().getBytes()
         );
-        baos.write(this.pages.asBytes());
+        baos.write(this.pages.with());
         return baos.toByteArray();
     }
 }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Contents.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Contents.java
index c89620c..aabeab8 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Contents.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Contents.java
@@ -62,10 +62,10 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         for (final Object obj : this) {
-            baos.write(obj.asBytes());
+            baos.write(obj.with());
         }
         return baos.toByteArray();
     }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Document.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Document.java
index e84cd24..097a2b8 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Document.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Document.java
@@ -94,8 +94,8 @@ public byte[] asBytes() throws Exception {
             ).asString().getBytes()
         );
         baos.write(Document.SIGNATURE);
-        baos.write(this.metadata.asBytes());
-        baos.write(this.catalog.asBytes());
+        baos.write(this.metadata.with());
+        baos.write(this.catalog.with());
         baos.write(
             new FormattedText(
                 "trailer << /Root %s /Size %d >>\n",
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Font.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Font.java
index e0ae47c..d8dfbf6 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Font.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Font.java
@@ -96,7 +96,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         return new FormattedText(
             "%d %d obj\n<< /Font << /%s %s >> >>\nendobj\n",
             this.number,
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Metadata.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Metadata.java
index eb0dfdc..dff1fad 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Metadata.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Metadata.java
@@ -86,7 +86,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         return new FormattedText(
             "%d %d obj\n<< /Title (%s) >>\nendobj\n",
             this.number,
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/MultiText.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/MultiText.java
index abf7be6..63ff62f 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/MultiText.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/MultiText.java
@@ -158,7 +158,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final StringBuilder out = new StringBuilder();
         final String[] lines = breakLines(this.content.asString(), this.max);
         for (int idx = 0; idx < lines.length - 1; ++idx) {
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Object.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Object.java
index 91baa5e..38eef15 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Object.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Object.java
@@ -23,17 +23,23 @@
  */
 package com.github.fabriciofx.cactoos.pdf;
 
-import org.cactoos.Bytes;
-
 /**
  * Represent any PDF object.
  *
  * @since 0.0.1
  */
-public interface Object extends Bytes {
+public interface Object {
     /**
      * Object reference.
      * @return The object reference.
      */
     String reference();
+
+    /**
+     * Build part of a PDF document.
+     * @param objects Other objects
+     * @return An array of bytes that represents a PDF document
+     * @throws Exception if fails
+     */
+    byte[] with(Object... objects) throws Exception;
 }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Page.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Page.java
index d5ea2bb..afcef83 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Page.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Page.java
@@ -29,7 +29,7 @@
 import org.cactoos.text.UncheckedText;
 
 /**
- * Page.
+ * PageDefault.
  *
  * @since 0.0.1
  */
@@ -102,23 +102,24 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         baos.write(
             new FormattedText(
                 new Joined(
                     " ",
                     "%d %d obj\n<< /Type /Page /Resources %s",
-                    "/Contents %s /Parent >>\nendobj\n"
+                    "/Contents %s /Parent %s >>\nendobj\n"
                 ),
                 this.number,
                 this.generation,
                 this.resources.reference(),
-                this.contents.reference()
+                this.contents.reference(),
+                objects[0].reference()
             ).asString().getBytes()
         );
-        baos.write(this.resources.asBytes());
-        baos.write(this.contents.asBytes());
+        baos.write(this.resources.with());
+        baos.write(this.contents.with());
         return baos.toByteArray();
     }
 }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Pages.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Pages.java
index de7dc5c..6ac85f2 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Pages.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Pages.java
@@ -101,7 +101,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         final String kds = this.kids.stream()
             .map(Page::reference)
@@ -121,14 +121,7 @@ public byte[] asBytes() throws Exception {
             ).asString().getBytes()
         );
         for (final Page page : this.kids) {
-            baos.write(
-                new String(
-                    page.asBytes()
-                ).replaceAll(
-                    "/Parent",
-                    new FormattedText("/Parent %s", this.reference()).asString()
-                ).getBytes()
-            );
+            baos.write(page.with(this));
         }
         return baos.toByteArray();
     }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Resources.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Resources.java
index dc1202c..c599b44 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Resources.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Resources.java
@@ -62,10 +62,10 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final ByteArrayOutputStream baos = new ByteArrayOutputStream();
         for (final Object obj : this) {
-            baos.write(obj.asBytes());
+            baos.write(obj.with());
         }
         return baos.toByteArray();
     }
diff --git a/src/main/java/com/github/fabriciofx/cactoos/pdf/Text.java b/src/main/java/com/github/fabriciofx/cactoos/pdf/Text.java
index 43f55d5..e0054d9 100644
--- a/src/main/java/com/github/fabriciofx/cactoos/pdf/Text.java
+++ b/src/main/java/com/github/fabriciofx/cactoos/pdf/Text.java
@@ -121,7 +121,7 @@ public String reference() {
     }
 
     @Override
-    public byte[] asBytes() throws Exception {
+    public byte[] with(final Object... objects) throws Exception {
         final String stream = new FormattedText(
             "BT /F1 %d Tf %d %d Td (%s) Tj ET",
             this.size,
diff --git a/src/test/java/com/github/fabriciofx/cactoos/pdf/FontTest.java b/src/test/java/com/github/fabriciofx/cactoos/pdf/FontTest.java
index 73864fa..8914a74 100644
--- a/src/test/java/com/github/fabriciofx/cactoos/pdf/FontTest.java
+++ b/src/test/java/com/github/fabriciofx/cactoos/pdf/FontTest.java
@@ -45,7 +45,7 @@ void build() throws Exception {
                     0,
                     new FontFamily("Times-Roman", "Type1"),
                     "F0"
-                ).asBytes()
+                ).with()
             ),
             new IsText(
                 new Joined(
diff --git a/src/test/java/com/github/fabriciofx/cactoos/pdf/MetadataTest.java b/src/test/java/com/github/fabriciofx/cactoos/pdf/MetadataTest.java
index 4a4f3dd..7323a43 100644
--- a/src/test/java/com/github/fabriciofx/cactoos/pdf/MetadataTest.java
+++ b/src/test/java/com/github/fabriciofx/cactoos/pdf/MetadataTest.java
@@ -36,11 +36,11 @@
  */
 final class MetadataTest {
     @Test
-    void metadata() {
+    void metadata() throws Exception {
         final String title = "Hello World";
         new Assertion<>(
             "Must contain metadata contents",
-            new TextOf(new Metadata(1, 0, title)),
+            new TextOf(new Metadata(1, 0, title).with()),
             new IsText(
                 new FormattedText(
                     "1 0 obj\n<< /Title (Hello World) >>\nendobj\n",
diff --git a/src/test/java/com/github/fabriciofx/cactoos/pdf/MultiTextTest.java b/src/test/java/com/github/fabriciofx/cactoos/pdf/MultiTextTest.java
index f610241..5f4d937 100644
--- a/src/test/java/com/github/fabriciofx/cactoos/pdf/MultiTextTest.java
+++ b/src/test/java/com/github/fabriciofx/cactoos/pdf/MultiTextTest.java
@@ -36,7 +36,7 @@
  */
 final class MultiTextTest {
     @Test
-    void multiLines() {
+    void multiLines() throws Exception {
         new Assertion<>(
             "Must break a big text into multiline",
             new TextOf(
@@ -66,7 +66,7 @@ void multiLines() {
                         "deserunt laborum mollit labore",
                         "id amet."
                     )
-                )
+                ).with()
             ),
             new IsText(
                 new Joined(