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Michael R Sweet
2025-10-05 15:35:23 -04:00
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doc/pdfio.3
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@@ -1,4 +1,4 @@
.TH pdfio 3 "pdf read/write library" "2025-09-30" "pdf read/write library"
.TH pdfio 3 "pdf read/write library" "2025-10-05" "pdf read/write library"
.SH NAME
pdfio \- pdf read/write library
.SH Introduction
@@ -3999,8 +3999,31 @@ This function creates a new PDF file. The "filename" argument specifies the
name of the PDF file to create.
.PP
The "version" argument specifies the PDF version number for the file or
\fBNULL\fR for the default ("2.0"). The value "PCLm-1.0" can be specified to
produce the PCLm subset of PDF.
\fBNULL\fR for the default ("2.0"). The following values are recognized:
.PP
.IP \(bu 5
"1.3", "1.4", "1.5", "1.6", "1.7", "2.0": Generic PDF files of the
specified versions.
.IP \(bu 5
"PCLm-1.0": The PCLm (raster) subset of PDF supported by some printers.
.IP \(bu 5
"PDF/A-1a": PDF/A-1a:2005
.IP \(bu 5
"PDF/A-1b": PDF/A-1b:2005
.IP \(bu 5
"PDF/A-2a": PDF/A-2a:2011
.IP \(bu 5
"PDF/A-2b": PDF/A-2b:2011
.IP \(bu 5
"PDF/A-2u": PDF/A-2u:2011
.IP \(bu 5
"PDF/A-3a": PDF/A-3a:2012
.IP \(bu 5
"PDF/A-3b": PDF/A-3b:2012
.IP \(bu 5
"PDF/A-3u": PDF/A-3u:2012
.IP \(bu 5
"PDF/A-4": PDF/A-4:2020
.PP
The "media_box" and "crop_box" arguments specify the default MediaBox and
CropBox for pages in the PDF file - if \fBNULL\fR then a default "Universal" size
@@ -4083,6 +4106,9 @@ specifies the font nane:
Aside from "Symbol" and "Zapf-Dingbats", Base fonts use the Windows CP1252
(ISO-8859-1 with additional characters such as the Euro symbol) subset of
Unicode.
.PP
.IP 5
Note: This function cannot be used when producing PDF/A files.
.SS pdfioFileCreateFontObjFromData
Add a font in memory to a PDF file.
.PP
@@ -4166,8 +4192,12 @@ the image is encoded in the corresponding device color space. The
"interpolate" parameter specifies whether to interpolate when scaling the
image on the page.
.PP
.IP 5
Note: When creating an image object with alpha, a second image object is
created to hold the "soft mask" data for the primary image.
.IP 5
created to hold the "soft mask" data for the primary image. PDF/A-1
.IP 5
files do not support alpha-based transparency.
.SS pdfioFileCreateImageObjFromFile
Add an image object to a PDF file from a file.
.PP
@@ -4185,11 +4215,9 @@ the "interpolate" parameter specifies whether to interpolate when scaling the
image on the page.
.PP
.IP 5
Note: Currently PNG support is limited to grayscale, RGB, or indexed files
Note: PNG files containing transparency cannot be used when producing
.IP 5
without interlacing or alpha. Transparency (masking) based on color/index
.IP 5
is supported.
PDF/A files.
.SS pdfioFileCreateNameObj
Create a new object in a PDF file containing a name.
.PP
@@ -4257,9 +4285,32 @@ written:
.fi
The "version" argument specifies the PDF version number for the file or
\fBNULL\fR for the default ("2.0"). Unlike \fIpdfioFileCreate\fR and
\fIpdfioFileCreateTemporary\fR, it is generally not safe to pass the
"PCLm-1.0" version string.
\fBNULL\fR for the default ("2.0"). The following values are recognized:
.PP
.IP \(bu 5
"1.3", "1.4", "1.5", "1.6", "1.7", "2.0": Generic PDF files of the
specified versions.
.IP \(bu 5
"PDF/A-1a": PDF/A-1a:2005
.IP \(bu 5
"PDF/A-1b": PDF/A-1b:2005
.IP \(bu 5
"PDF/A-2a": PDF/A-2a:2011
.IP \(bu 5
"PDF/A-2b": PDF/A-2b:2011
.IP \(bu 5
"PDF/A-2u": PDF/A-2u:2011
.IP \(bu 5
"PDF/A-3a": PDF/A-3a:2012
.IP \(bu 5
"PDF/A-3b": PDF/A-3b:2012
.IP \(bu 5
"PDF/A-3u": PDF/A-3u:2012
.IP \(bu 5
"PDF/A-4": PDF/A-4:2020
.PP
Unlike \fIpdfioFileCreate\fR and \fIpdfioFileCreateTemporary\fR, it is
generally not safe to pass the "PCLm-1.0" version string.
.PP
The "media_box" and "crop_box" arguments specify the default MediaBox and
CropBox for pages in the PDF file - if \fBNULL\fR then a default "Universal" size

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doc/pdfio.html
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@@ -4222,10 +4222,33 @@ profile using the "cond_id" value.
name of the PDF file to create.<br>
<br>
The &quot;version&quot; argument specifies the PDF version number for the file or
<code>NULL</code> for the default (&quot;2.0&quot;). The value &quot;PCLm-1.0&quot; can be specified to
produce the PCLm subset of PDF.<br>
<br>
The &quot;media_box&quot; and &quot;crop_box&quot; arguments specify the default MediaBox and
<code>NULL</code> for the default (&quot;2.0&quot;). The following values are recognized:
</p><ul>
<li>&quot;1.3&quot;, &quot;1.4&quot;, &quot;1.5&quot;, &quot;1.6&quot;, &quot;1.7&quot;, &quot;2.0&quot;: Generic PDF files of the
specified versions.
</li>
<li>&quot;PCLm-1.0&quot;: The PCLm (raster) subset of PDF supported by some printers.
</li>
<li>&quot;PDF/A-1a&quot;: PDF/A-1a:2005
</li>
<li>&quot;PDF/A-1b&quot;: PDF/A-1b:2005
</li>
<li>&quot;PDF/A-2a&quot;: PDF/A-2a:2011
</li>
<li>&quot;PDF/A-2b&quot;: PDF/A-2b:2011
</li>
<li>&quot;PDF/A-2u&quot;: PDF/A-2u:2011
</li>
<li>&quot;PDF/A-3a&quot;: PDF/A-3a:2012
</li>
<li>&quot;PDF/A-3b&quot;: PDF/A-3b:2012
</li>
<li>&quot;PDF/A-3u&quot;: PDF/A-3u:2012
</li>
<li>&quot;PDF/A-4&quot;: PDF/A-4:2020</li>
</ul>
<p class="discussion">The &quot;media_box&quot; and &quot;crop_box&quot; arguments specify the default MediaBox and
CropBox for pages in the PDF file - if <code>NULL</code> then a default &quot;Universal&quot; size
of 8.27x11in (the intersection of US Letter and ISO A4) is used.<br>
<br>
@@ -4312,7 +4335,10 @@ specifies the font nane:
</ul>
<p class="discussion">Aside from &quot;Symbol&quot; and &quot;Zapf-Dingbats&quot;, Base fonts use the Windows CP1252
(ISO-8859-1 with additional characters such as the Euro symbol) subset of
Unicode.</p>
Unicode.<br>
<br>
</p><blockquote>
Note: This function cannot be used when producing PDF/A files.</blockquote>
<h3 class="function"><span class="info">&#160;PDFio v1.6&#160;</span><a id="pdfioFileCreateFontObjFromData">pdfioFileCreateFontObjFromData</a></h3>
<p class="description">Add a font in memory to a PDF file.</p>
<p class="code">
@@ -4428,8 +4454,10 @@ the image is encoded in the corresponding device color space. The
&quot;interpolate&quot; parameter specifies whether to interpolate when scaling the
image on the page.<br>
<br>
</p><blockquote>
Note: When creating an image object with alpha, a second image object is
created to hold the &quot;soft mask&quot; data for the primary image.</p>
created to hold the &quot;soft mask&quot; data for the primary image. PDF/A-1
files do not support alpha-based transparency.</blockquote>
<h3 class="function"><a id="pdfioFileCreateImageObjFromFile">pdfioFileCreateImageObjFromFile</a></h3>
<p class="description">Add an image object to a PDF file from a file.</p>
<p class="code">
@@ -4452,9 +4480,8 @@ the &quot;interpolate&quot; parameter specifies whether to interpolate when scal
image on the page.<br>
<br>
</p><blockquote>
Note: Currently PNG support is limited to grayscale, RGB, or indexed files
without interlacing or alpha. Transparency (masking) based on color/index
is supported.</blockquote>
Note: PNG files containing transparency cannot be used when producing
PDF/A files.</blockquote>
<h3 class="function"><span class="info">&#160;PDFio v1.4&#160;</span><a id="pdfioFileCreateNameObj">pdfioFileCreateNameObj</a></h3>
<p class="description">Create a new object in a PDF file containing a name.</p>
<p class="code">
@@ -4542,9 +4569,32 @@ output_cb(void *output_cbdata, const void *buffer, size_t bytes)
</pre>
The &quot;version&quot; argument specifies the PDF version number for the file or
<code>NULL</code> for the default (&quot;2.0&quot;). Unlike <a href="#pdfioFileCreate"><code>pdfioFileCreate</code></a> and
<a href="#pdfioFileCreateTemporary"><code>pdfioFileCreateTemporary</code></a>, it is generally not safe to pass the
&quot;PCLm-1.0&quot; version string.<br>
<code>NULL</code> for the default (&quot;2.0&quot;). The following values are recognized:
</p><ul>
<li>&quot;1.3&quot;, &quot;1.4&quot;, &quot;1.5&quot;, &quot;1.6&quot;, &quot;1.7&quot;, &quot;2.0&quot;: Generic PDF files of the
specified versions.
</li>
<li>&quot;PDF/A-1a&quot;: PDF/A-1a:2005
</li>
<li>&quot;PDF/A-1b&quot;: PDF/A-1b:2005
</li>
<li>&quot;PDF/A-2a&quot;: PDF/A-2a:2011
</li>
<li>&quot;PDF/A-2b&quot;: PDF/A-2b:2011
</li>
<li>&quot;PDF/A-2u&quot;: PDF/A-2u:2011
</li>
<li>&quot;PDF/A-3a&quot;: PDF/A-3a:2012
</li>
<li>&quot;PDF/A-3b&quot;: PDF/A-3b:2012
</li>
<li>&quot;PDF/A-3u&quot;: PDF/A-3u:2012
</li>
<li>&quot;PDF/A-4&quot;: PDF/A-4:2020</li>
</ul>
<p class="discussion">Unlike <a href="#pdfioFileCreate"><code>pdfioFileCreate</code></a> and <a href="#pdfioFileCreateTemporary"><code>pdfioFileCreateTemporary</code></a>, it is
generally not safe to pass the &quot;PCLm-1.0&quot; version string.<br>
<br>
The &quot;media_box&quot; and &quot;crop_box&quot; arguments specify the default MediaBox and
CropBox for pages in the PDF file - if <code>NULL</code> then a default &quot;Universal&quot; size
@@ -4632,10 +4682,33 @@ temporary directory. The temporary file is stored in the string &quot;buffer&qu
will have a &quot;.pdf&quot; extension.<br>
<br>
The &quot;version&quot; argument specifies the PDF version number for the file or
<code>NULL</code> for the default (&quot;2.0&quot;). The value &quot;PCLm-1.0&quot; can be specified to
produce the PCLm subset of PDF.<br>
<br>
The &quot;media_box&quot; and &quot;crop_box&quot; arguments specify the default MediaBox and
<code>NULL</code> for the default (&quot;2.0&quot;). The following values are recognized:
</p><ul>
<li>&quot;1.3&quot;, &quot;1.4&quot;, &quot;1.5&quot;, &quot;1.6&quot;, &quot;1.7&quot;, &quot;2.0&quot;: Generic PDF files of the
specified versions.
</li>
<li>&quot;PCLm-1.0&quot;: The PCLm (raster) subset of PDF supported by some printers.
</li>
<li>&quot;PDF/A-1a&quot;: PDF/A-1a:2005
</li>
<li>&quot;PDF/A-1b&quot;: PDF/A-1b:2005
</li>
<li>&quot;PDF/A-2a&quot;: PDF/A-2a:2011
</li>
<li>&quot;PDF/A-2b&quot;: PDF/A-2b:2011
</li>
<li>&quot;PDF/A-2u&quot;: PDF/A-2u:2011
</li>
<li>&quot;PDF/A-3a&quot;: PDF/A-3a:2012
</li>
<li>&quot;PDF/A-3b&quot;: PDF/A-3b:2012
</li>
<li>&quot;PDF/A-3u&quot;: PDF/A-3u:2012
</li>
<li>&quot;PDF/A-4&quot;: PDF/A-4:2020</li>
</ul>
<p class="discussion">The &quot;media_box&quot; and &quot;crop_box&quot; arguments specify the default MediaBox and
CropBox for pages in the PDF file - if <code>NULL</code> then a default &quot;Universal&quot; size
of 8.27x11in (the intersection of US Letter and ISO A4) is used.<br>
<br>