How to remove metadata from pdf on Linux Ubuntu

Install exiftool:

apt install exiftool

Remove the metadata from "thefile.pdf":

exiftool -all= thefile.pdf

Warning: [minor] ExifTool PDF edits are reversible. Deleted tags may be recovered! - thefile.pdf
    1 image files updated


Metadata, in the context of PDFs, refers to a set of data that describes and gives information about other data. Essentially, it's data about the PDF that isn't necessarily visible when you open the document but can be extracted using specific tools or software. This might include information such as the author, document properties, editing history, and even comments.

Here are some of the benefits and security reasons to consider removing metadata from a PDF:

  1. Privacy Protection: Metadata can contain personal information, such as the document's author, the software used to create it, and the system or computer on which it was created. By removing this information, you can protect your privacy, especially if the PDF will be shared publicly.

  2. Confidentiality: In a corporate environment, metadata might reveal details about internal processes, review workflows, or internal comments. This could provide competitors with unintended insights.

  3. Professionalism: Stray comments, annotations, or previous versions of the document can look unprofessional if unintentionally shared. Clean PDFs without unnecessary metadata present a more polished image.

  4. Reduces File Size: Metadata, especially when accumulated over time or with embedded comments and annotations, can add to the file size. By removing unnecessary metadata, the PDF might become smaller and easier to share or upload.

  5. Protect Intellectual Property: Metadata might reveal how a document was created, who worked on it, and other insights that could be of value to competitors or adversaries.

  6. Avoid Accidental Disclosure: In legal settings, it's imperative not to disclose more than intended. Metadata can sometimes contain privileged or confidential information that isn't meant for the opposing counsel or the public.

  7. Mitigate Security Risks: Some metadata, especially if embedded with links or scripts, can be a vector for security vulnerabilities. Cleaning up a PDF can be part of a broader strategy to maintain cybersecurity hygiene.

  8. Standardization: For organizations that deal with a large volume of documents, standardizing the process of cleaning up metadata can ensure that all shared documents meet a consistent standard of privacy and professionalism.

  9. Avoid Digital Footprints: If you're a researcher, activist, or anyone concerned about leaving a digital footprint, removing metadata is essential. It ensures that the origins of a document and its path of creation and modification remain hidden.

  10. Regulatory Compliance: Certain industries or sectors have stringent rules about data protection and privacy. In some cases, it might be a regulatory requirement to strip metadata from documents before sharing.



metadata, pdf, linux, ubuntuinstall, exiftool, apt, install, quot, thefile, edits, reversible, deleted, tags, recovered, updated,

Latest Articles

  • How to resize a pdf without losing much quality in Linux Mint Ubuntu Debian Redhat Solution
  • qemu: could not load PC BIOS 'bios-256k.bin' solution
  • Proxmox How To Custom Partition During Install
  • Hyper-V Linux VM Boots to Black Screen, Storage, NIC Not Found Issues
  • Ubuntu Mint How to Fix Missing/Broken /dev and /dev/pts which causes terminal to immediately close exit and not work
  • How high can a Xeon CPU get?
  • bash fix PATH environment variable "command not found" solution
  • Ubuntu Linux Mint Debian Redhat Youtube Cannot Play HD or 4K videos, dropped frames or high CPU usage with Nvidia or AMD Driver
  • hostapd example configuration for high speed AC on 5GHz using WPA2
  • hostapd how to enable and use WPS to connect wireless devices like printers
  • Dell Server Workstation iDRAC Dead after Firmware Update Solution R720, R320, R730
  • Cloned VM/Server/Computer in Linux won't boot and goes to initramfs busybox Solution
  • How To Add Windows 7 8 10 11 to GRUB Boot List Dual Booting
  • How to configure OpenDKIM on Linux with Postfix and setup bind zonefile
  • Debian Ubuntu 10/11/12 Linux how to get tftpd-hpa server setup tutorial
  • efibootmgr: option requires an argument -- 'd' efibootmgr version 15 grub-install.real: error: efibootmgr failed to register the boot entry: Operation not permitted.
  • Apache Error Won't start SSL Cert Issue Solution Unable to configure verify locations for client authentication SSL Library Error: 151441510 error:0906D066:PEM routines:PEM_read_bio:bad end line SSL Library Error: 185090057 error:0B084009:x509 certif
  • Linux Debian Mint Ubuntu Bridge br0 gets random IP
  • redis requirements
  • How to kill a docker swarm