[tannevaled]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/go-pdfkit/ops	v0.25.0 → v0.38.0

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Release Notes

go-pdfkit/ops (github.com/go-pdfkit/ops)

v0.38.0

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What's Changed

• docs: the browser workbench is go-pdfkit/playground by @​tannevaled in #​86
• redact: destroy the pixels of a JPEG, as plain samples by @​tannevaled in #​87

Full Changelog: go-pdfkit/ops@v0.37.0...v0.38.0

v0.37.0

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Say what changed between two versions of a document

ops.Compare and pdfops compare.

pdfops compare draft1.pdf draft2.pdf

- -> 2    page added
2 -> 3    text removed       zeta
2 -> 3    text added         theta
2 of 3 page(s) changed

⛔ The pages are paired by what they say, not by their numbers. A page
inserted in the middle moves nothing after it: the pages that follow are still
paired with the pages they came from, and the insertion is one page added.
A pair must share half its words, or it is one page removed and another
added — without that floor a replaced chapter reads as a rewrite of the one
before it.

Inside a pair the diff is Myers (An O(ND) Difference Algorithm and Its
Variations, Algorithmica 1 (1986) 251–266) over words, with the words that
changed together reported together: "quick brown fox" → "slow grey mole" is
two changes, not six. Pictures are told apart by a hash of their samples, so
a swapped logo of the same size is a change; annotations by their subtype and
their text.

Bounded on both axes, because the input is two files and a file can say
anything: the alignment gives up past four million page pairs and pairs the
pages where they stand, and the diff gives up past two thousand differences and
reports both pages whole. A reference that points at itself stops the
comparison with the page named.

⛔ compare exits 0 whether or not the documents differ, unlike diff: in
this command an exit of 1 means the work could not be done, and a document that
changed is the work being done. The answer is in the last line, in words.

Closes the Compare PDFs row of the BentoPDF gap table for everything a
library can answer; side by side and overlay are the workbench's.

🤖 Generated with Claude Code

v0.36.0

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Turn a page by any angle

Doc.Turn and pdfops turn: the arbitrary-angle half that Rotate refuses.
Rotate writes a number on the page — /Rotate, a multiple of ninety — and
Turn rewrites the page onto a sheet of its own.

pdfops turn -by 30 tilted.pdf turned.pdf
pdfops turn -pages 2,5-7 -by -1.5 scan.pdf nudged.pdf

⛔ The paper grows and nothing is cut off, which is the whole difference
from Deskew: a deskew is a correction of a fraction of a degree on a page
whose text sits well inside its margins, so it keeps the paper it was given.
The sheet is the turned page's bounding box — w·|cos θ| + h·|sin θ| across,
w·|sin θ| + h·|cos θ| down — and the page is centred on it, checked by
mapping all four corners for angles from −350° to 350°: each must land inside
the sheet, and each edge must be touched.

An angle that is a multiple of ninety goes through /Rotate and nothing else
happens: no transformation, no new content stream, a page whose text was
selectable stays selectable.

⛔ Positive is clockwise, as ISO 32000-1 Table 30 and Doc.Rotate already
mean it. The tool this is ported from, BentoPDF's rotate-custom, documents the
same thing and then does the opposite for any angle that is not a multiple of
ninety — its two arms turn opposite ways, and the seam is at exactly 90°. The
gate here is a render across that seam: a mark at the top of a square page must
come back at the right-hand edge after +90°, measured at 89°, 90° and 91°.

Closes the Rotate by Custom Degrees row of the BentoPDF gap table.

🤖 Generated with Claude Code

v0.35.0

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A redaction destroys the pixels under it

ISO 32000-1 §12.5.6.23: "If a portion of an image is contained in a redaction
region, that portion of the image data shall be destroyed; clipping or image
masks shall not be used to hide that data."

Redact used to refuse every region a picture was drawn across — which, for a
scanned page, is every region there is. It now overwrites the samples under the
region and writes the picture back.

It does that to a picture whose samples are plain (already unfiltered by the
reader), eight bits a component, DeviceGray or DeviceRGB, drawn upright
and drawn once. Everything else is still refused by its own name, with
its reason, at Redact rather than at the write: a /Filter (a JPEG would have
to be decoded and re-encoded), a turned or skewed placement, a picture drawn
twice, an inline image, /ImageMask, /SMask, /Mask, /Decode, samples that
are not 8 bits, and any colour space outside those two — a zero sample in an
/Indexed space is the palette's first colour, which may be white.

⛔ The page's /Resources are rebuilt, not copied, or the original picture
would stay in the file beside the blanked one, referenced by nothing and holding
every pixel the redaction promised to remove — defect #​74 one object along. The
test walks every object of the written file and decodes it.

⛔ The sample grid counts down while the page counts up. Row zero is the
picture's top row and v runs from its bottom edge; reading one for the other
blanks the mirror image of what was asked for. A region ending part way into a
sample destroys all of it.

Requires go-pdfkit/extract v0.11.0, whose Image.Matrix is what the upright
test reads. Closes #​80 for the plain case; the JPEG half stays open there.

🤖 Generated with Claude Code

v0.34.0

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What's Changed

• A printed table of contents, as a page of the document by @​tannevaled in #​78

Full Changelog: go-pdfkit/ops@v0.33.0...v0.34.0

v0.33.0

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What's Changed

• Nest, the half of ParseOutline a document already has by @​tannevaled in #​77

Full Changelog: go-pdfkit/ops@v0.32.0...v0.33.0

v0.32.0

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What's Changed

• The bookmark grammar moves into the library as ParseOutline by @​tannevaled in #​76

Full Changelog: go-pdfkit/ops@v0.31.0...v0.32.0

v0.31.0

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What's Changed

• feat(annots): a line, a rectangle and an ellipse over a page by @​tannevaled in #​75

Full Changelog: go-pdfkit/ops@v0.30.0...v0.31.0

v0.30.0

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What's Changed

• fix(write): a redacted document kept every removed word in an orphan object by @​tannevaled in #​73

Full Changelog: go-pdfkit/ops@v0.29.0...v0.30.0

v0.29.0

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What's Changed

• feat(annots): sticky notes and free text, both with the appearance that makes them visible by @​tannevaled in #​72

Full Changelog: go-pdfkit/ops@v0.28.1...v0.29.0

v0.28.1

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What's Changed

• fix(redact): see the annotations this document has added, not only the file's by @​tannevaled in #​69

Full Changelog: go-pdfkit/ops@v0.28.0...v0.28.1

v0.28.0

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What's Changed

• feat(redact): remove the text in a region, and refuse what it cannot by @​tannevaled in #​68

Full Changelog: go-pdfkit/ops@v0.27.0...v0.28.0

v0.27.0

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What's Changed

• pdfops mark: the verb that makes marking reachable by @​tannevaled in #​66

Full Changelog: go-pdfkit/ops@v0.26.0...v0.27.0

v0.26.0

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What's Changed

• fix(deps): update module github.com/go-pdfkit/document to v0.2.0 by @​tannevaled in #​64
• Mark a page: highlight, underline, strikeout, squiggly by @​tannevaled in #​65

Full Changelog: go-pdfkit/ops@v0.25.0...v0.26.0

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This PR has been generated by Mend Renovate CLI.

[tannevaled]

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 1 additional dependency was updated

Details:

Package	Change
github.com/go-opentype/opentype	v0.16.1 -> v0.17.0