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Read PDF (HP50)
11-14-2020, 01:43 AM
Post: #1
Read PDF (HP50)
Does HP 50 read PDF?

Is there any program able to open and to read it?

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11-14-2020, 09:31 AM
Post: #2
RE: Read PDF (HP50)
Do you seriously want to render a PDF on a 131×80 pixels screen?

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11-14-2020, 01:09 PM
Post: #3
RE: Read PDF (HP50)
To be clear, that was a no.

But I think you knew that and asked a silly question just to make it to 50 posts... Wink

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05-06-2021, 01:17 PM (This post was last modified: 05-06-2021 01:18 PM by BINUBALL.)
Post: #4
RE: Read PDF (HP50)
Surprisingly, I think It can be done with Open Fire Image Viewer.
You have to convert pdf to individual image, and convert that image to 16-shade grayscale with open fire image converter.
Output will be extension gro4. You can view this with open fire



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05-06-2021, 02:24 PM
Post: #5
RE: Read PDF (HP50)
Still seems like a 'no' to me... Smile

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05-06-2021, 02:39 PM
Post: #6
RE: Read PDF (HP50)
... for two reasons:
- This doesn't appear very usable; obvious improvements would be downscaling the images and writing a new GROB viewer with gallery-style functionality for page flipping.
- You're technically not opening a PDF, you're opening screenshots of it. The hard part of PDF opening is rendering it, and the 50g still can't do that.
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05-06-2021, 02:46 PM (This post was last modified: 05-06-2021 02:47 PM by BobVA.)
Post: #7
RE: Read PDF (HP50)
I remember writing an image decoder for the HP-48 so I could get weather maps from Compuserve with a little pocket modem.

It was a super simple format - I think RLE, maybe. Not particularly practical, but it was a good way to learn RPL. :-)
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05-07-2021, 09:01 AM
Post: #8
RE: Read PDF (HP50)
Yes, I didn't think about essence of pdf. This is not method viewing pdf. It was just viewing image.

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