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diff --git a/src/xxHash/xxhsum.1 b/src/xxHash/xxhsum.1
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+.
+.TH "XXHSUM" "1" "February 2016" "xxhsum 0.5.0" "User Commands"
+.
+.SH "NAME"
+\fBxxhsum\fR \- print or check xxHash non\-cryptographic checksums
+.
+.SH "SYNOPSIS"
+\fBxxhsum\fR [\fIOPTION\fR] \.\.\. [\fIFILE\fR] \.\.\.
+.
+.SH "DESCRIPTION"
+Print or check xxHash (32 or 64bit) checksums\. When \fIFILE\fR is \fB\-\fR, read standard input\.
+.
+.P
+\fBxxhsum\fR supports a command line syntax similar but not indentical to md5sum(1)\. Differences are: \fBxxhsum\fR doesn\'t have text/binary mode switch (\fB\-b\fR, \fB\-t\fR); \fBxxhsum\fR always treats file as binary file; \fBxxhsum\fR has hash bit width switch (\fB\-H\fR);
+.
+.P
+Since xxHash is non\-cryptographic checksum algorithm, \fBxxhsum\fR should not be used any more for security related purposes\.
+.
+.SH "OPTIONS"
+.
+.TP
+\fB\-b\fR
+Benchmark mode
+.
+.TP
+\fB\-B\fR\fIBLOCKSIZE\fR
+\fIBLOCKSIZE\fR specifies benchmark mode\'s test data block size in bytes\. Default value is 102400
+.
+.TP
+\fB\-c\fR, \fB\-\-check\fR
+Read xxHash sums from the \fIFILE\fRs and check them
+.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Display help and exit
+.
+.TP
+\fB\-H\fR\fIHASHTYPE\fR
+Hash selection\. \fIHASHTYPE\fR means \fB0\fR=32bits, \fB1\fR=64bits\. Default value is \fB1\fR (64bits)
+.
+.TP
+\fB\-\-little\-endian\fR
+Set output hexadecimal checksum value as little endian convention\. By default, value is displayed as big endian
+.
+.TP
+\fB\-V\fR, \fB\-\-version\fR
+Display xxhsum version
+.
+.P
+\fBThe following four options are useful only when verifying checksums (\fB\-c\fR)\fR
+.
+.TP
+\fB\-\-quiet\fR
+Exit non\-zero for improperly formatted checksum lines
+.
+.TP
+\fB\-\-strict\fR
+Don\'t print OK for each successfully verified file
+.
+.TP
+\fB\-\-status\fR
+Don\'t output anything, status code shows success
+.
+.TP
+\fB\-w\fR, \fB\-\-warn\fR
+Warn about improperly formatted checksum lines
+.
+.SH "EXIT STATUS"
+\fBxxhsum\fR exit \fB0\fR on success, \fB1\fR if at least one file couldn\'t be read or doesn\'t have the same checksum as the \fB\-c\fR option\.
+.
+.SH "EXAMPLES"
+Output xxHash (64bit) checksum values of specific files to standard output
+.
+.IP "" 4
+.
+.nf
+
+$ xxhsum \-H1 foo bar baz
+.
+.fi
+.
+.IP "" 0
+.
+.P
+Output xxHash (32bit and 64bit) checksum values of specific files to standard output, and redirect it to \fBxyz\.xxh32\fR and \fBqux\.xxh64\fR
+.
+.IP "" 4
+.
+.nf
+
+$ xxhsum \-H0 foo bar baz > xyz\.xxh32
+$ xxhsum \-H1 foo bar baz > qux\.xxh64
+.
+.fi
+.
+.IP "" 0
+.
+.P
+Read xxHash sums from specific files and check them
+.
+.IP "" 4
+.
+.nf
+
+$ xxhsum \-c xyz\.xxh32 qux\.xxh64
+.
+.fi
+.
+.IP "" 0
+.
+.SH "BUGS"
+Report bugs at: https://github\.com/Cyan4973/xxHash/issues/
+.
+.SH "AUTHOR"
+Yann Collet
diff --git a/src/xxHash/xxhsum.1.md b/src/xxHash/xxhsum.1.md
new file mode 100644
index 000000000..426ceef2c
--- /dev/null
+++ b/src/xxHash/xxhsum.1.md
@@ -0,0 +1,119 @@
+xxhsum(1) -- print or check xxHash non-cryptographic checksums
+==============================================================
+
+SYNOPSIS
+--------
+
+`xxhsum` [<OPTION>] ... [<FILE>] ...<br/>
+`xxhsum -b` [<OPTION>] ...
+
+DESCRIPTION
+-----------
+
+Print or check xxHash (32 or 64bit) checksums.  When <FILE> is `-`, read
+standard input.
+
+`xxhsum` supports a command line syntax similar but not indentical to
+md5sum(1).  Differences are: `xxhsum` doesn't have text/binary mode switch
+(`-b`, `-t`);  `xxhsum` always treats file as binary file;  `xxhsum` has hash
+bit width switch (`-H`);
+
+Since xxHash is non-cryptographic checksum algorithm, `xxhsum` should not be
+used any more for security related purposes.
+
+`xxhsum -b` invokes benchmark mode. See [OPTIONS](#OPTIONS) and [EXAMPLES](#EXAMPLES) for details.
+
+OPTIONS
+-------
+
+* `-c`, `--check`:
+  Read xxHash sums from the <FILE>s and check them
+
+* `-h`, `--help`:
+  Display help and exit
+
+* `-H`<HASHTYPE>:
+  Hash selection.  <HASHTYPE> means `0`=32bits, `1`=64bits.
+  Default value is `1` (64bits)
+
+* `--little-endian`:
+  Set output hexadecimal checksum value as little endian convention.
+  By default, value is displayed as big endian
+
+* `-V`, `--version`:
+  Display xxhsum version
+
+**The following four options are useful only when verifying checksums (`-c`)**
+
+* `--quiet`:
+  Exit non-zero for improperly formatted checksum lines
+
+* `--strict`:
+  Don't print OK for each successfully verified file
+
+* `--status`:
+  Don't output anything, status code shows success
+
+* `-w`, `--warn`:
+  Warn about improperly formatted checksum lines
+
+**The following options are useful only benchmark purpose**
+
+* `-b`:
+  Benchmark mode.  See [EXAMPLES](#EXAMPLES) for details.
+
+* `-B`<BLOCKSIZE>:
+  Only useful for benchmark mode (`-b`). See [EXAMPLES](#EXAMPLES) for details.
+  <BLOCKSIZE> specifies benchmark mode's test data block size in bytes.
+  Default value is 102400
+
+* `-i`<ITERATIONS>:
+  Only useful for benchmark mode (`-b`). See [EXAMPLES](#EXAMPLES) for details.
+  <ITERATIONS> specifies number of iterations in benchmark. Single iteration
+  takes at least 2500 milliseconds. Default value is 3
+
+EXIT STATUS
+-----------
+
+`xxhsum` exit `0` on success, `1` if at least one file couldn't be read or
+doesn't have the same checksum as the `-c` option.
+
+EXAMPLES
+--------
+
+Output xxHash (64bit) checksum values of specific files to standard output
+
+    $ xxhsum -H1 foo bar baz
+
+Output xxHash (32bit and 64bit) checksum values of specific files to standard
+output, and redirect it to `xyz.xxh32` and `qux.xxh64`
+
+    $ xxhsum -H0 foo bar baz > xyz.xxh32
+    $ xxhsum -H1 foo bar baz > qux.xxh64
+
+Read xxHash sums from specific files and check them
+
+    $ xxhsum -c xyz.xxh32 qux.xxh64
+
+Benchmark xxHash algorithm for 16384 bytes data in 10 times. `xxhsum`
+benchmarks xxHash algorithm for 32-bit and 64-bit and output results to
+standard output.  First column means algorithm, second column is source data
+size in bytes, last column means hash generation speed in mega-bytes per
+seconds.
+
+    $ xxhsum -b -i10 -B16384
+
+BUGS
+----
+
+Report bugs at: https://github.com/Cyan4973/xxHash/issues/
+
+AUTHOR
+------
+
+Yann Collet
+
+SEE ALSO
+--------
+
+md5sum(1)