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.. _pagelayout:
Default appearance in PDF viewers
*********************************
Using pikepdf you can control the initial page layout and page mode, that is,
how a PDF will appear by default when loaded in a PDF viewer.
These settings are changed written to the PDF's root object. Note that the PDF
viewer may ignore them and user preferences may override, etc.
.. code-block:: python
from pikepdf import Pdf, Dictionary, Name
with Pdf.open('input.pdf') as pdf:
pdf.root.PageLayout = Name.SinglePage
pdf.root.PageMode = Name.FullScreen
pdf.save('output.pdf')
For reference, the tables below provide summarize the available options.
.. list-table:: PageLayout definitions
:widths: 20 80
:header-rows: 1
* - Value
- Meaning
* - Name.SinglePage
- Display one page at a time (default)
* - Name.OneColumn
- Display the pages in one column
* - Name.TwoColumnLeft
- Display the pages in two columns, with odd-numbered pages on the left
* - Name.TwoColumnRight
- Display the pages in two columns, with odd-numbered pages on the right
* - Name.TwoPageLeft
- Display the pages two at a time, with odd-numbered pages on the left
* - Name.TwoPageRight
- Display the pages two at a time, with odd-numbered pages on the right
.. list-table:: PageMode definitions
:widths: 20 80
:header-rows: 1
* - Value
- Meaning
* - Name.UseNone
- Neither document outline nor thumbnail images visible (default)
* - Name.UseOutlines
- Document outline visible
* - Name.UseThumbs
- Thumbnail images visible
* - Name.FullScreen
- Full-screen mode, with no menu bar, window controls, or any other window visible
* - Name.UseOC
- Optional content group panel visible
* - Name.UseAttachments
- Attachments panel visible
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