Files and images#
Where what you upload is stored. Find it under Systém → Soubory and → Obrázky.
Images#
An image uploaded into the system is stored once, and thumbnails are produced from it automatically in the sizes needed.
Upload large, not pre-shrunk
The system shrinks what it needs. It cannot make a small image large — and it shows on a product detail or in a gallery.
Thumbnail sizes are configured outside the administration
If you change the dimensions in a module's settings and nothing happens, that is why. Talk to your administrator.
Formats and size#
| Format | When to use it |
|---|---|
| JPEG | photographs |
| PNG | logos, images with transparency |
| SVG | icons and simple graphics |
| WebP | a smaller file at the same quality |
Do not upload photographs straight from a camera
A phone shot can easily be 8 MB. Even though it gets resized, uploading takes time and occupies space. Shrink photographs to a sensible size before uploading.
Files#
Files for download — manuals, price lists, documentation.
| Field | Note |
|---|---|
| Path and name | where it was stored |
| Extension | |
| Description | per language |
| Uploaded on |
An uploaded file is publicly accessible
Anyone who knows the address downloads it — without logging in. Do not upload anything that should not be public: price lists for selected customers, contracts, data backups.
Naming#
No accents, no spaces
cenik-2026.pdf, not Ceník 2026 (finální).pdf. The name becomes part of the
address, and accents and spaces cause trouble there — especially in links sent by
email.
Put the date in the name
cenik-2026-01.pdf says at a glance whether it is current. Without it there is no
telling.
Replacing a file#
A new file under the same name may not show up immediately
Browsers remember downloaded files. So upload the new version under a new name and switch the link over.
Deleting#
A deleted file disappears from everywhere it is linked
The links do not disappear — they simply stop working. Before deleting anything, check where it is used.
Move unused files rather than deleting them at once
Rename them or move them to a separate folder and wait a while to see whether anyone speaks up.