Does Fill My Film accept EPS?
Yes. EPS is PostScript, which needs an interpreter to render. Fill My Film runs one inside the browser so the file never leaves your machine, the same as every other format it reads.
ARTWORK FORMATS · IN AND OUT
The Extension Tells You Less Than You Think
Shops receive artwork in whatever the customer had: a PNG from Canva, a PDF from a designer, an AI file from a sign shop, a PSD with forty layers. Most of it can go straight onto a sheet. This page covers what each format carries, which ones keep a real physical size, and what the output should be.
Fill My Film creates the gang sheet file for your own printer or RIP workflow. It does not print or ship DTF transfers.
FILL MY FILM · PRODUCTION VIEWFILES
PNGJPGWEBPSVGPDFAIPSDTIFF
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THE SHORT ANSWER
DTF File Formats for Gang Sheets
PNG is the working format for finished raster artwork because it keeps transparency; JPG never does. Vector and design formats (SVG, PDF, AI, EPS) carry a physical size and render sharp at any print width. PSD and TIFF carry layers and a DPI tag. Fill My Film reads all of these in the browser and exports one PNG per sheet with the resolution written into the file at 150, 300 or 600 DPI.
RASTER FORMATS
PNG keeps the transparency; JPG throws it away
PNG stores an alpha channel, so the film outside the design stays clear and a silhouette nester can see the real shape. JPG has no alpha at all: whatever was behind the design becomes an opaque rectangle that prints. WebP behaves like PNG and is fine.
A raster file also carries a DPI tag, but that tag is only a suggestion about size. The pixels are what count, and a 1,200 pixel file is 300 DPI at 4 inches no matter what the tag says.
- PNG and WebP: transparency kept
- JPG: opaque background, always
- DPI tag is advisory; pixels are real
VECTOR AND DESIGN FORMATS
An .ai file is a PDF wearing a different name
An .ai file saved with PDF compatibility on, which is Illustrator's default, is a PDF with extra Illustrator data attached, which is why a PDF reader can open one. SVG, PDF, AI and EPS all describe shapes mathematically and carry a physical size in points or millimetres, so they render clean edges at any print width. Fill My Film reads each of them in the browser and rasterises at the size you set, with EPS handled by a PostScript interpreter that runs locally.
PSD keeps layers, and TIFF keeps a DPI tag and optional layers; both are read as the flattened image at their stated physical size. Hidden layers, clipping masks and spot channels are flattened as displayed.
- SVG, PDF, AI, EPS: sharp at any size
- PSD, TIFF: flattened at their stated size
- Extensions lie; the file's contents decide
THE OUTPUT
One PNG per sheet, with the DPI inside it
Whatever went in, the sheet comes out as a PNG with transparency and a resolution tag that matches the DPI you chose, so the RIP opens it at the right physical size without a conversion step. Exports round the sheet length up to the next whole inch, and jobs longer than 120 inches are split into separate sheets.
Open the first export in the RIP configuration you actually print with and confirm width, height and orientation before running a full job.
- Output: transparent PNG at 150, 300 or 600 DPI
- Sheet length rounded up to the whole inch
- Over 120 inches: exported as separate sheets
QUESTIONS PRINTERS ASK
DTF File Formats for Gang Sheets questions
Should I send my printer a PDF or a PNG gang sheet?
The sheet file should be the raster your RIP expects, and for most DTF workflows that is a PNG with transparency and a correct DPI tag. Keep vector originals for the individual designs; the assembled sheet is a raster by nature.
Why did my TIFF come in at the wrong size?
TIFF carries a DPI tag, and if the tag is missing or wrong the physical size is wrong with it. Check the pixel dimensions against the intended inches and set the print width by hand in the tool.
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