diff --git a/CHANGELOG.md b/CHANGELOG.md
index 96f4559cd9e859cad7fd718f1a80ecc369cdde9f..272499c40629072137c99ac6afaa039e13848727 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ This document is user facing. Please word the changes in such a way
 that users understand how the changes affect the new version.
 -->
 
+version 5.0.0-dev
+---------------------------
++ Add wdl file for pacbio's bam2fastx tool.
+
 version 4.0.0
 ---------------------------
 + Picard MergeVcf now uses compression level 1 by default.
diff --git a/bam2fastx.wdl b/bam2fastx.wdl
new file mode 100644
index 0000000000000000000000000000000000000000..09c5689734db291480e467eef99b38f04ae26dcb
--- /dev/null
+++ b/bam2fastx.wdl
@@ -0,0 +1,129 @@
+version 1.0
+
+# Copyright (c) 2020 Sequencing Analysis Support Core - Leiden University Medical Center
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+task Bam2Fasta {
+    input {
+        File inputFile
+        String outputPrefix
+        Int compressionLevel = 1
+        Boolean uncompressedOutput = false
+        Boolean splitByBarcode = false
+
+        String? seqIdPrefix
+
+        String memory = "2G"
+        Int timeMinutes = 15
+        String dockerImage = "quay.io/biocontainers/bam2fastx:1.3.0--he1c1bb9_8"
+    }
+
+    command {
+        set -e
+        mkdir -p "$(dirname ~{outputPrefix})"
+        bam2fasta \
+        --output ~{outputPrefix} \
+        -c ~{compressionLevel}
+        ~{true="-u" false="" uncompressedOutput} \
+        ~{true="--split-barcodes" false="" splitByBarcode} \
+        ~{"--seqid-prefix " + seqIdPrefix} \
+        ~{inputFile}
+    }
+
+    output {
+        File fastaFile = outputPrefix + ".fasta.gz"
+    }
+
+    runtime {
+        memory: memory
+        time_minutes: timeMinutes
+        docker: dockerImage
+    }
+
+    parameter_meta {
+        # inputs
+        inputFile: {description: "The input pacbio bam file.", category: "required"}
+        outputPrefix: {description: "Output directory path + output file prefix.", category: "required"}
+        compressionLevel: {description: "Gzip compression level [1-9]", category: "advanced"}
+        uncompressedOutput: {description: "Do not compress. In this case, we will not add .gz, and we ignore any -c setting.", category: "advanced"}
+        splitByBarcode: {description: "Split output into multiple fasta files, by barcode pairs.", category: "advanced"}
+        seqIdPrefix: {description: "Prefix for sequence IDs in headers.", category: "advanced"}
+        memory: {description: "The amount of memory available to the job.", category: "advanced"}
+        timeMinutes: {description: "The maximum amount of time the job will run in minutes.", category: "advanced"}
+        dockerImage: {description: "The docker image used for this task. Changing this may result in errors which the developers may choose not to address.", category: "advanced"}
+
+        # outputs
+        fastaFile: {description: "The fasta output file."}
+    }
+}
+
+task Bam2Fastq {
+    input {
+        File inputFile
+        String outputPrefix
+        Int compressionLevel = 1
+        Boolean uncompressedOutput = false
+        Boolean splitByBarcode = false
+
+        String? seqIdPrefix
+
+        String memory = "2G"
+        Int timeMinutes = 15
+        String dockerImage = "quay.io/biocontainers/bam2fastx:1.3.0--he1c1bb9_8"
+    }
+
+    command {
+        set -e
+        mkdir -p "$(dirname ~{outputPrefix})"
+        bam2fastq \
+        --output ~{outputPrefix} \
+        -c ~{compressionLevel}
+        ~{true="-u" false="" uncompressedOutput} \
+        ~{true="--split-barcodes" false="" splitByBarcode} \
+        ~{"--seqid-prefix " + seqIdPrefix} \
+        ~{inputFile}
+    }
+
+    output {
+        File fastaFile = outputPrefix + ".fastq.gz"
+    }
+
+    runtime {
+        memory: memory
+        time_minutes: timeMinutes
+        docker: dockerImage
+    }
+
+    parameter_meta {
+        # inputs
+        inputFile: {description: "The input pacbio bam file.", category: "required"}
+        outputPrefix: {description: "Output directory path + output file prefix.", category: "required"}
+        compressionLevel: {description: "Gzip compression level [1-9]", category: "advanced"}
+        uncompressedOutput: {description: "Do not compress. In this case, we will not add .gz, and we ignore any -c setting.", category: "advanced"}
+        splitByBarcode: {description: "Split output into multiple fastq files, by barcode pairs.", category: "advanced"}
+        seqIdPrefix: {description: "Prefix for sequence IDs in headers.", category: "advanced"}
+        memory: {description: "The amount of memory available to the job.", category: "advanced"}
+        timeMinutes: {description: "The maximum amount of time the job will run in minutes.", category: "advanced"}
+        dockerImage: {description: "The docker image used for this task. Changing this may result in errors which the developers may choose not to address.", category: "advanced"}
+
+        # outputs
+        fastaFile: {description: "The fastq output file."}
+    }
+}