# phpman > man > openssl-pkcs7(1)

[OPENSSL-PKCS7(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-PKCS7/1SSL/markdown)                            OpenSSL                           [OPENSSL-PKCS7(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-PKCS7/1SSL/markdown)



## NAME
       openssl-pkcs7 - PKCS#7 command

## SYNOPSIS
       **openssl** **pkcs7** [**-help**] [**-inform** **DER**|**PEM**] [**-outform** **DER**|**PEM**] [**-in** _filename_] [**-out** _filename_]
       [**-print**] [**-print**___**certs**] [**-text**] [**-noout**] [**-engine** _id_] [**-provider** _name_] [**-provider-path** _path_]
       [**-propquery** _propq_]

## DESCRIPTION
       This command processes PKCS#7 files.  Note that it only understands PKCS#7 v 1.5 as specified
       in IETF RFC 2315.  It cannot currently parse CMS as described in IETF RFC 2630.

## OPTIONS
### -help
           Print out a usage message.

### -inform -outform
           The input and formats; the default is **PEM**.  See [**openssl-format-options**(1)](https://www.chedong.com/phpMan.php/man/openssl-format-options/1/markdown) for details.

           The data is a PKCS#7 Version 1.5 structure.

### -in
           This specifies the input filename to read from or standard input if this option is not
           specified.

### -out
           Specifies the output filename to write to or standard output by default.

### -print
           Print out the full PKCS7 object.

### -print
           Prints out any certificates or CRLs contained in the file. They are preceded by their
           subject and issuer names in one line format.

### -text
           Prints out certificate details in full rather than just subject and issuer names.

### -noout
           Don't output the encoded version of the PKCS#7 structure (or certificates if **-print**___**certs**
           is set).

### -engine
           See "Engine Options" in [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown).  This option is deprecated.

### -provider
### -provider-path
### -propquery
           See "Provider Options" in [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown), [**provider**(7)](https://www.chedong.com/phpMan.php/man/provider/7/markdown), and [**property**(7)](https://www.chedong.com/phpMan.php/man/property/7/markdown).

## EXAMPLES
       Convert a PKCS#7 file from PEM to DER:

        openssl pkcs7 -in file.pem -outform DER -out file.der

       Output all certificates in a file:

        openssl pkcs7 -in file.pem -print_certs -out certs.pem

## SEE ALSO
       [**openssl**(1)](https://www.chedong.com/phpMan.php/man/openssl/1/markdown), [**openssl-crl2pkcs7**(1)](https://www.chedong.com/phpMan.php/man/openssl-crl2pkcs7/1/markdown)

## HISTORY
       The **-engine** option was deprecated in OpenSSL 3.0.

## COPYRIGHT
       Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use this file except in
       compliance with the License.  You can obtain a copy in the file LICENSE in the source
       distribution or at <<https://www.openssl.org/source/license.html>>.



3.0.2                                        2026-06-02                          [OPENSSL-PKCS7(1SSL)](https://www.chedong.com/phpMan.php/man/OPENSSL-PKCS7/1SSL/markdown)