Closed
Bug 873865
Opened 11 years ago
Closed 11 years ago
PDF.js, resolution of rendered image
Categories
(Firefox :: PDF Viewer, defect, P4)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: meljturner, Unassigned)
Details
(Whiteboard: [pdfjs-c-performance])
Attachments
(3 files)
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/536.29.13 (KHTML, like Gecko) Version/6.0.4 Safari/536.29.13 Steps to reproduce: I am downloading single page PDF files which consist of a large page (48 x 65 cm) image prepared in ABBYY Finereader as text under image. Actual results: The document is rendered correctly but needs to be magnified by at least 400% to read the text. The rendered image appears to be too low a resolution and when magnified is not readable. Expected results: The embedded image is of sufficient resolution and renders properly in Safari/Preview or Acrobat. Attached is a subject PDF. The download facility can be viewed at http://mvtm.ca/museum/?page_id=2759
Updated•11 years ago
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Component: General → PDF Viewer
Product: Core → Firefox
Comment 1•11 years ago
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At 100% zoom this pdf looks the same in preview and Firefox to me. Do you have a screenshot of the two compared side by side?
Flags: needinfo?(meljturner)
Priority: -- → P4
Whiteboard: [pdfjs-c-performance]
Reporter | ||
Comment 2•11 years ago
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Flags: needinfo?(meljturner)
Reporter | ||
Comment 3•11 years ago
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Reporter | ||
Comment 4•11 years ago
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(In reply to Brendan Dahl from comment #1) > At 100% zoom this pdf looks the same in preview and Firefox to me. Do you > have a screenshot of the two compared side by side? The two attachments are firefox and safari respectively at about 350% zoom. At 100% zoom the problem is not apparent. I appears that firefox zooms by magnifying the 100% zoom rather than by resampling the downloaded image.
Reporter | ||
Comment 5•11 years ago
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My attachments got deleted, not sure why!?
Comment 6•11 years ago
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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:26.0) Gecko/20100101 Firefox/26.0 Using latest Nightly (20130917030214), the document at 400% zoom looks very much alike with the one provided by Safari. Could you please try too and confirm? The Nightly build is available at: http://nightly.mozilla.org/
Flags: needinfo?(meljturner)
Reporter | ||
Comment 7•11 years ago
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Using Firefox Nightly (2013-09-17) this problem appears to be resolved. Thank you very much. Note the onscreen magnification menu only allows selection of up to 200%, but using the '+' I increased the magnification to 350% and the resolution remained clear. Note the original url that illustrated the problem has changed. Now at http://mvtm.ca/mvtm/?page_id=2759
Status: UNCONFIRMED → RESOLVED
Closed: 11 years ago
Flags: needinfo?(meljturner)
Resolution: --- → WORKSFORME
Comment 8•11 years ago
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Thank you for your answer. Indeed zoom picker only allows up to 200% zoom, but for zoom in/out the +/- buttons or the Command+/Command- or Command + mouse scroll can also be used.
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Description
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