Pre-publication checks for photos, video, and audio materials

Pre-Publication Checks for Photos, Video, and Audio Materials

Photos, video, and audio give articles strong persuasive power.

Scenes from the field, witness voices, images of internal documents, records of harm. These can communicate powerfully to readers, but they also contain many clues that can identify sources or people involved.

In a pre-publication check, review not only "what you want to show," but also "what becomes visible."

What to check in photos

Photos retain information in backgrounds and reflections.

Check people's faces, uniforms, name tags, license plates, buildings, what is outside windows, posted notices, documents, and small objects on desks.

Photos should be checked by zooming in.

Even if an image appears small in the article, readers can save it, enlarge it, and adjust its brightness.

In photos, the surrounding area is often more of a problem than the subject the photographer wants to show. Even if a source's face is not shown, documents on a desk, what is outside a window, reflections, posted notices, uniforms, employee IDs, or building features can reveal a location or affiliation. Even if the image is cropped in the article, editing only the published version is not enough if the original image remains on a public server or in a shared folder.

For photos, check not only the published version but also how the original data is handled. Manage the cropped image for publication, the unedited image, alternate shots, and thumbnails separately.

What to check in video

Video contains more information than photos.

Even a few seconds of footage can include faces, voices, gait, background sounds, travel paths, screen notifications, and reflections of the person filming.

Video needs to be paused and reviewed frame by frame.

If you only watch it play through, you may miss reflections or notifications.

Because video unfolds over time, sensitive information can appear only for an instant. A notification at the edge of the screen, a reflection in a mirror or window, a station name visible during movement, a name spoken in conversation, a license plate, or the photographer's shadow. Even for short videos, pause and check them.

Edited video also requires care. Editing projects, subtitle files, thumbnails, unused tracks, and source video may remain. Recheck the exported file for publication in a separate environment.

What to check in audio

For audio materials, check not only what is being said, but also the voice itself and background sound.

Voice quality, dialect, verbal habits, workplace-specific words, surrounding sounds, machine noise, station announcements, and people calling out can all become clues.

Even if audio is processed, the source may still be identifiable from the content or background sound.

Do not assume "the voice has been changed, so it is safe."

Voice is strong identifying information. Voice quality, speaking style, dialect, verbal habits, pauses, and use of technical terms can lead people to infer who the speaker is. Background sound also contains location information. Station announcements, workplace announcements, machine noise, school bells, in-store music, and voices calling names.

Transcription also requires care. If proper nouns, timelines, and workplace-specific phrasing are released unchanged, the source can be narrowed down.

If external AI, cloud editing, or online conversion sites are used for transcription, noise reduction, markup, conversion, or metadata checks, the material itself and usage history may be sent to external services. For high-risk materials, prioritize methods that can be handled locally or offline, and first decide whether the material may be uploaded to external services.

Metadata and file information

Photos, video, and audio can retain metadata.

This includes capture time, device information, GPS, editing software, filenames, and internal thumbnails.

Methods for checking metadata are also covered in another article.

Metadata may include capture time, GPS, device names, editing software, creator names, and filenames. Check it when materials are received, when they are shared inside the newsroom, and when they are published. If original data has already spread through internal sharing, checking only right before publication may be too late.

Tools are useful for metadata checks, but they cannot judge backgrounds or audio content. Combine tool checks with human review.

Cautions when processing for publication

Blurring, pixelation, voice alteration, and cropping are useful, but careless processing can create danger instead.

Failures include leaving original files on a public server, publishing an unblurred alternate shot, leaving background sound even after altering a voice, or including original data in an editing project.

It is preferable to have another person recheck the processed publication file.

Decide the purpose of processing first. Whose face should be hidden? Which place should be hidden? Which voice should be protected? Which information is necessary for readers? If processing starts with an unclear purpose, information that should be hidden may remain, and information that is needed may be removed.

Roles before publication

Photos, video, and audio are easy to miss when one person reviews them alone. The photographer, editor, article lead, and a person reviewing source protection will each see different things. However, the more reviewers there are, the wider the material is shared, so limit review to necessary people.

A pre-publication check is not a quality check for the material. It is a safety check to reduce information that can lead back to sources or people involved.

Managing materials after publication

Material management continues after publication. If unedited photos, video, audio, editing projects, subtitle files, and alternate shots remain in broad shared folders, they may leak later. Even if the published version is made safer, risk remains if original materials remain.

For each material, decide what to keep, what to delete, and who can access it. If something must be retained for evidentiary value, make the storage location and permissions clear.

Summary

Photos, video, and audio materials make reporting more persuasive.

At the same time, they contain many clues that can identify sources or people involved.

In photos, check faces, backgrounds, reflections, and text. In video, check sound, movement, filming position, and notifications. In audio, check voice quality, dialect, background sound, and technical terms.

Also review metadata such as GPS, capture time, device information, and filenames.

In a pre-publication check, it is important to confirm not only the information you want readers to see, but also whether information leading back to the source remains.

Related tools

Related articles