What format for scanned files?

[Manuel Reiter]

What format are you using for scanned files? Scanimage can only produce PNG and TIFF, I lean towards PDF for now but would like to hear your thoughts on this.

[Matthias Löblich]

Hi Manuel,
best would be to optimize the scans before adding them to the EDMS.

I am using a changed version of this:
http://www.och-group.de/2016/10/25/update-fujitsu-scansnap-ix500-mit-raspbian-raspberry-pi-als-scanserver-nutzen/

Blog is German, but script is bash :-)

br
Matthias

[Manuel Reiter]

Thanks, interesting script. I'll give it a closer look these days. BTW, I'm german myself, so no problems with the blog text. ;)

Cheers,

  Manuel

[Matthias Löblich]

Hätte ich mir denken können bei dem Namen ;-).

Grüße aus Österreich

lg

Matthias

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[Roberto Rosario]

For me it depends on what I'm scanning and the priority of the scan (text, color, image). For images I use JPEG to conserve detail without having files that are too big. For drawings or blueprints I use PNG. For multipage scans like contracts I use PDF. There is an experimental branch that add a headless SANE (https://en.wikipedia.org/wiki/Scanner_Access_Now_Easy) source support (https://gitlab.com/mayan-edms/mayan-edms/tree/feature/sane_source), this would allow for scanning documents directly into Mayan straight from the scanner and not having to use a separate program. It is a proof of concept but if improved could be added in the next version.

[Manuel Reiter]

Thanks! I'll give the SANE branch a look. Scanning directly into Mayan would be a nice feature. For now, I intend to set up automated scanning into the staging folder triggered by the scanner buttons. Do you have any idea how you will handle multi page documents yet? I use an approach of one button for the last or only page and one button for all other pages.

If it's not too off-topic, may I ask how you produce the PDFs from your scans? I have the feeling that converting the PNMs directly with convert leads to overly large PDFs.

[Jonathon Exley]

I use simple scan on Linux to create multi-page PDFs then use the web browser upload form.

My multi function printer/scanner says it can do scans direct to an ftp server but I haven't worked out how to do it yet.

On Apr 22, 2017 11:16 PM, "Manuel Reiter" <manuel...@gmail.com> wrote:

Thanks! I'll give the SANE branch a look. Scanning directly into Mayan would be a nice feature. For now, I intend to set up automated scanning into the staging folder triggered by the scanner buttons. Do you have any idea how you will handle multi page documents yet? I use an approach of one button for the last or only page and one button for all other pages.

If it's not too off-topic, may I ask how you produce the PDFs from your scans? I have the feeling that converting the PNMs directly with convert leads to overly large PDFs.

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[Jesaja Everling]

Many scanners also have a "scan-to-email" function which might work nicely as well for many use cases.

[Manuel Reiter]

Thanks for your input, Jonathon! Simple scan sounds like a manual solution, however. I'm looking for a process that allows me to produce multi page PDFs using only my printer/scanner's buttons.

[Manuel Reiter]

Unfortunately, it seems like mine doesn't...

On Saturday, April 22, 2017 at 9:46:56 PM UTC+2, Jesaja Everling wrote:

Many scanners also have a "scan-to-email" function which might work nicely as well for many use cases.

On Sat, Apr 22, 2017 at 10:10 PM, Jonathon Exley <jonatho...@gmail.com> wrote:

I use simple scan on Linux to create multi-page PDFs then use the web browser upload form.

My multi function printer/scanner says it can do scans direct to an ftp server but I haven't worked out how to do it yet.

On Apr 22, 2017 11:16 PM, "Manuel Reiter" <manuel...@gmail.com> wrote:

Thanks! I'll give the SANE branch a look. Scanning directly into Mayan would be a nice feature. For now, I intend to set up automated scanning into the staging folder triggered by the scanner buttons. Do you have any idea how you will handle multi page documents yet? I use an approach of one button for the last or only page and one button for all other pages.

If it's not too off-topic, may I ask how you produce the PDFs from your scans? I have the feeling that converting the PNMs directly with convert leads to overly large PDFs.

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[Roberto Rosario]

This could help: http://eduardoluis.com/raspberry-pi-and-usb-network-scanner/

[Manuel Reiter]

Thanks for the suggestion. However, imy question is not really about initiating the scan but rather about how to process the raw PNM output before importing the results into Mayan. The linked page's scan script seems to just convert PNM to JPG via ImageMagick's 'convert'. I'm looking more for a method of producing reasonable quality reasonably sized PDFs.