Blurred images #1344
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TilingType issue. From the console: "Warning: TODO: TilingType: 1" Still there with Windows 7 x64, Firefox 25.0.1 (HWA on) and the latest PDF.js development version |
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This is still a problem with OSX 10.8.5, Firefox 29. |
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Remark: The dots have disappeared in some cases. And while working on something else, I discovered that the Matrix of the tiling pattern has 0 and 0 for the x and y scale, respectively.
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Still blurry plots with Firefox 62 and PDF.js: 2.0.625 |
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Still blurry plots with Firefox 66.0.1 and PDF.js: 2.2.107. |
brendandahl
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Jun 30, 2021
Previously, when we filled image masks we didn't copy over the current transformation, this caused patterns to be misaligned when painted. Now we create a temporary canvas with the mask and have the transform copied over and offset it relative to where the mask would be painted. We also weren't properly offsetting tiling patterns. This isn't usually noticeable since patters repeat, but in the case of mozilla#13561 the pattern is only drawn once and has to be in the correct position to line up with the mask image. These fixes broke mozilla#11473, but highlighted that we were drawing that correctly by accident and not correctly handling negative bounding boxes on tiling patterns. Fixes mozilla#6297, mozilla#13561, mozilla#13441, mozilla#13111 Partially fixes mozilla#1344 (still blurry but boxes are in correct position now)
brendandahl
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Jul 6, 2021
Previously, when we filled image masks we didn't copy over the current transformation, this caused patterns to be misaligned when painted. Now we create a temporary canvas with the mask and have the transform copied over and offset it relative to where the mask would be painted. We also weren't properly offsetting tiling patterns. This isn't usually noticeable since patters repeat, but in the case of mozilla#13561 the pattern is only drawn once and has to be in the correct position to line up with the mask image. These fixes broke mozilla#11473, but highlighted that we were drawing that correctly by accident and not correctly handling negative bounding boxes on tiling patterns. Fixes mozilla#6297, mozilla#13561, mozilla#13441, mozilla#13111 Partially fixes mozilla#1344 (still blurry but boxes are in correct position now)
brendandahl
added a commit
to brendandahl/pdf.js
that referenced
this issue
Jul 7, 2021
Previously, when we filled image masks we didn't copy over the current transformation, this caused patterns to be misaligned when painted. Now we create a temporary canvas with the mask and have the transform copied over and offset it relative to where the mask would be painted. We also weren't properly offsetting tiling patterns. This isn't usually noticeable since patters repeat, but in the case of mozilla#13561 the pattern is only drawn once and has to be in the correct position to line up with the mask image. These fixes broke mozilla#11473, but highlighted that we were drawing that correctly by accident and not correctly handling negative bounding boxes on tiling patterns. Fixes mozilla#6297, mozilla#13561, mozilla#13441 Partially fixes mozilla#1344 (still blurry but boxes are in correct position now)
brendandahl
added a commit
to brendandahl/pdf.js
that referenced
this issue
Sep 10, 2021
… 1722191) While some of the output looks worse to my eye, this behavior more closely matches what I see when I open the PDFs in Adobe acrobat. Fixes: mozilla#4706, mozilla#9713, mozilla#8245, mozilla#1344
bh213
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Jun 3, 2022
Previously, when we filled image masks we didn't copy over the current transformation, this caused patterns to be misaligned when painted. Now we create a temporary canvas with the mask and have the transform copied over and offset it relative to where the mask would be painted. We also weren't properly offsetting tiling patterns. This isn't usually noticeable since patters repeat, but in the case of mozilla#13561 the pattern is only drawn once and has to be in the correct position to line up with the mask image. These fixes broke mozilla#11473, but highlighted that we were drawing that correctly by accident and not correctly handling negative bounding boxes on tiling patterns. Fixes mozilla#6297, mozilla#13561, mozilla#13441 Partially fixes mozilla#1344 (still blurry but boxes are in correct position now)
bh213
pushed a commit
to bh213/pdf.js
that referenced
this issue
Jun 3, 2022
… 1722191) While some of the output looks worse to my eye, this behavior more closely matches what I see when I open the PDFs in Adobe acrobat. Fixes: mozilla#4706, mozilla#9713, mozilla#8245, mozilla#1344
rousek
pushed a commit
to signosoft/pdf.js
that referenced
this issue
Aug 10, 2022
… 1722191) While some of the output looks worse to my eye, this behavior more closely matches what I see when I open the PDFs in Adobe acrobat. Fixes: mozilla#4706, mozilla#9713, mozilla#8245, mozilla#1344
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PDF.js displays blurry plots in PDF documents, e.g.
http://arxiv.org/pdf/1202.5344v1.pdf
When viewed in Chrome or Adobe Acrobat all the plots show sharp-edged squares. When viewed in Preview or PDF.js, all the squares show as blurry pixelated blobs.
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