When you want to standardize file formats across clients, you’re really trying to remove friction from every project. Without standards, each client sends assets in random formats—TIFFs, massive PSDs, outdated Word documents—and your team wastes time converting everything manually.
Table of Contents
1. Define Your “Accepted” Formats
Start by deciding what your agency will work with:
- Documents for review: Google Docs or PDFs.
- Final reports: always PDFs.
- Web images: JPG or WebP; PNG only when transparency is required.
- Logos and brand assets: SVG or high-resolution PNG.
Document these standards in a short guide and share it during onboarding. This is the foundation to standardize file formats across clients.
2. Create Simple Asset Intake Rules
Make it easy for clients to comply:
- Provide a one-page PDF or link that lists preferred formats and maximum sizes.
- Offer a shared folder structure with clear labels like
/Brand assets/,/Product photos/,/Content. - Explain why these rules matter: faster launch times, fewer errors, better quality control.
Most clients are happy to help when they understand the benefit.
3. Normalise Incoming Files Internally
Even with guidelines, you’ll still receive “creative” formats. Set up an internal process to standardize file formats across clients:
- Convert heavy or unusual formats (TIFF, BMP) into JPG or WebP for web use.
- Turn editable documents into PDFs for approvals and archiving.
- Store raw source files separately from web-ready assets.
Tools like ModiTool can quickly convert PDFs to images, images to WebP and compress PDFs to manageable sizes.
4. Establish Naming Conventions
Formats are only part of the problem — filenames matter too:
- Use patterns like
clientname-project-type-date-version.pdf. - For images, include product or campaign names, e.g.
client-shoes-summer-hero-01.webp. - Avoid spaces and special characters that break URLs.
Consistent naming helps you standardize file formats across clients and makes life easier for developers and media buyers.
5. Batch-Convert and Compress Where Possible
Manual conversion doesn’t scale. To reduce workload:
- Batch-convert whole folders of images to WebP or optimised JPG.
- Batch-compress legacy PDFs for archives or resource pages.
- Merge or split PDFs to match your standard structure.
ModiTool’s batch tools help you standardize file formats across clients without pulling designers into repetitive tasks.
6. Teach Clients Gently, Not Rigidly
You don’t need to enforce standards with a stick:
- Offer to “clean up” assets once and show before-and-after results.
- Explain how standardised formats help campaigns launch faster or improve page speed.
- Include a small reminder in project kickoffs about file format expectations.
Over time, clients will naturally adapt, and you’ll fully standardize file formats across clients without constant policing.


