Hewlett-packard Development Company, L.P.

Bharani Nunna

Rajesh Bhatia

Prashant Asthana

Sekhar Muni Sirigiri

Jeniki Pradeep Kumar

According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor to extract text from a document. The processor may retrieve images associated with characters in the extracted text and generate a stitched image using the retrieved images. The processor may watermark the stitched image and replace the characters in the document with the images associated with the characters from the watermarked and stitched image.

Watermarks for text documents

An example implementation includes an apparatus including a processor to divide a digital image into a grid including a first grid region and a second grid region. The processor is also to generate a first grid-based watermark using shared watermark information and a first set of grid coordinates associated with the first grid region. The processor is further to generate a second grid-based watermark using the shared watermark information and a second set of grid coordinates associated with the second grid region. The processor is further to embed the first grid-based watermark into a first region of the digital image corresponding to the first grid region and to embed the second grid-based watermark into a second region of the digital image corresponding to the second grid region. The processor is further to generate a machine-readable digital image including the embedded first grid-based watermark and the embedded second grid-based watermark.

Grid-based watermark

Examples disclosed herein relate to generating a print format version with an overlaid machine-readable link. As an example, a set of machine-readable links assigned to a user account from a remote repository is obtained. In response to a print command associated with the user account, one machine-readable link from amongst the set of the machine-readable links is selected and applied onto a portion of the digital document. Thereafter, a print format version of the digital document along with the machine-readable link is generated.

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Bharani Nunna