bmearns writes "I have some simple plain-text files (e.g., account information) that I want to print on paper and store in my firebox as a backup to my backup. What's the best way to encode the data for print so that it can later be restored to digital form? I've considered just printing it as text and using OCR to recover it. The upsides are that it's easy and I can even access the information without a computer if necessary. Downsides are data density, no encryption, no error correction, and how well does OCR work, anyway? Another option is printing 2D barcodes. Upsides are density, error correction, I could encrypt the data before printing. Downsides are that I'll need to split it up into multiple barcodes due to maximum capacity of popular barcode formats, and I can't access the data without a computer. Did I miss any options? What do slashdotters suggest?"