Documents and AI
Which formats and what size
The real limits on an upload and how to work around whichever one you hit.
Almost any document you have will work. The limits that exist are two: the size and, for automatic reading, whether the original can be read at all.
| Format | Uploads | Read automatically |
|---|---|---|
| PDF with text | Yes | Yes, and it is the best case |
| Scanned PDF | Yes | Yes, if the scan is legible |
| Photo (JPG, PNG, HEIC) | Yes | Yes, if it is in focus and straight |
| Word, Excel | Yes | Yes |
| Archives (zip) | Yes | The documents inside are read |
The size
The per-file limit is 30 MB, which covers practically everything except scans made at print resolution. If you exceed it, it is almost always because the scanner is set to 600 dpi: dropping to 300 quarters the weight without losing anything legible.
Watch out
Before uploading a scan, check it reads at a glance. What you cannot read, automatic reading cannot read either.
What to do with a huge file
- Drop the scan resolution to 300 dpi.
- Scan in black and white if colour adds nothing.
- Split it: usually it is several documents bundled into one.
›Can I upload several at once?
Yes, by dragging the whole selection.
›A 200-page PDF?
Yes, as long as it stays under 30 MB.
›Is what I upload compressed?
No. It is stored exactly as it arrived, which is what lets it serve as evidence.
A real case
The situation
An accountancy firm cannot upload a 48 MB scan of a deed.
What you do
- Rescans at 300 dpi in greyscale
What you get
The same document weighs 9 MB, uploads without trouble and reads just as well.
The situation
An unsupported format is uploaded.
What you do
- Converts to an accepted format
What you get
The document goes in first time.
The situation
A file exceeds the size limit.
What you do
- Compresses or splits before uploading
What you get
It uploads without losing content.
The situation
It is compressed so much it stops being readable.
What you do
- Adjusts compression while keeping legibility
What you get
The document goes in and also reads.
The situation
A bulk load is planned without checking formats.
What you do
- Tries a sample first
What you get
The big load does not stall halfway.
The situation
An old format does not process well.
What you do
- Converts it to a standard format
What you get
The document looks the same for everyone.
This article answers
- which file formats are accepted
- the file is too large
- upload size limit
- can i upload word or only pdf