Bulk Metadata Editor — Complete Guide
Learn how to use the bulk metadata editor to add titles, descriptions, keywords, and copyright to many JPEG, PNG, MP4, and PDF files at once.
Open the tool →What the bulk metadata editor does
The bulk metadata editor writes SEO-friendly metadata into many files in a single pass. Instead of opening each photo, video, or document separately, you set defaults — artist, copyright, keywords, album, genre, year, location, rating, comment — once, then apply them to every uploaded file. The bulk editor supports JPEG, PNG, WebP, MP4, and PDF, so a single workflow covers your entire publishing pipeline.
When to use bulk editing instead of per-file editing
Use bulk editing whenever you need to ship a batch — a photoshoot, a product catalog, a webinar recording with multiple exports, a content drop. Bulk editing scales linearly with file count and removes the human error you get from copy-pasting fields manually. For one-off changes, the per-file metadata editor is faster. For privacy-stripping use the metadata remover, and to inspect what is currently embedded use the metadata viewer.
Step 1 — Fill the Default values panel
Open /bulk-editor and start with the Default values panel at the top. Fill the fields that apply to every file in this batch: Artist (your brand or name), Copyright (use the © symbol plus year), Album (project name), Genre (category), Year, Location (city, country), Rating (1-5 stars), and Comment. These values are written to every file you upload unless you override them per file. Your defaults persist in your browser, so the next session starts where this one left off.
Step 2 — Write 10 strong default keywords
Keywords are the most impactful SEO field. Aim for around 10 comma-separated keywords that describe your business, the asset type, and the search queries you want the file to surface for. Examples: "product photography, ecommerce, lifestyle shot, brand assets, marketing 2026, etsy product, shopify product, jpeg metadata, image seo, alt text". Avoid stuffing irrelevant terms — search engines and stock marketplaces both penalize keyword spam.
Step 3 — Drop your files in the upload area
Drag and drop, or tap the dropzone on mobile. The editor accepts JPEG, JPG, PNG, WebP, MP4, and PDF in any combination. Files are listed below with a thumbnail, file size, and per-file inputs for Title, Description, and Keywords. The Title defaults to the filename with the extension stripped — usually a sensible starting point.
Step 4 — Customize titles and descriptions per file
Defaults give you 80% of the way. For the last 20%, click into each file card and tweak Title and Description. A good Title is 40-60 characters describing what the file shows. A good Description is 100-200 characters that complements the title without repeating it. If you want to override the default keywords for one file, type new ones and uncheck "Use defaults". Tap the chevron to collapse a card on mobile if it gets in the way.
Step 5 — Process and download
Tap "Inject & Download". Processing happens entirely in your browser — your files never leave your device. For one file you get the file back in its original format (image stays image, MP4 stays MP4, PDF stays PDF). For multiple files you get a ZIP archive. You can drop the result into the metadata viewer to verify that every field landed correctly.
What gets written into each file format
JPEG receives EXIF (ImageDescription, Artist, Copyright, UserComment, DateTime), IPTC (caption, byline, copyright, keywords, city), and XMP (Dublin Core, Photoshop, Iptc4xmpCore, xmpDM). PNG gets tEXt chunks for every field. WebP gets an EXIF chunk + XMP packet. MP4 gets iTunes-style atoms (©nam, ©cmt, ©ART, ©cpy, ©alb, ©gen, ©day, ©xyz, cprt, keyw). PDF gets the standard info dictionary (Title, Author, Subject, Keywords, Creator). All of these are recognized by Google, Bing, Adobe Bridge, ExifTool, Photoshop, and standard document viewers.
Daily limits and going Pro
The free plan lets anonymous users process 3 files per day and signed-in users process 10. If you need higher volume, sign up and stay in the free tier, or check our pricing for unlimited processing. Because all processing is browser-side, even Pro plans never see your files server-side — you keep full privacy.
Frequently asked questions
- Does the bulk editor upload my files anywhere?
- No. All metadata injection happens in your browser using local JavaScript. The only thing sent to the server is a small JSON record of how many files you processed, so the daily counter stays accurate. The files themselves never leave your device.
- How many files can I process at once?
- The bulk editor accepts up to 20 files per batch with no per-file size limit beyond what your browser can hold in memory (typically a few hundred MB). You can run multiple batches in a session.
- Can I save my default values for next time?
- Yes. The Default values panel saves to your browser localStorage automatically, so reopening /bulk-editor restores your last Artist, Copyright, Keywords, and all other defaults.
- Does it work on phones?
- Yes. The bulk editor is mobile-optimized with a sticky bottom action bar, collapsible file cards, and a tap-to-browse dropzone. iOS Safari, Chrome Android, and Firefox Mobile are all supported.
Ready to apply this?
Use MediaMeta's browser-based tools — your files never leave your device.