Differences

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--- software:pdf [2009/03/27 09:27]
cyril created
+++ software:pdf [2025/01/07 22:49] (current)
cyril [convert (image magick)]
@@ Line 13: / Line 13: @@
 </code>
+Compress PDF file containing images (''/screen'' compresses even more than ''/ebook''):
+<code>
+gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -sOutputFile=out.pdf in.pdf
+</code>
 ===== PDFTK =====
-Split and merge PDF files:
+  * Split and merge PDF files:<code>
-<code>
+pdftk in.pdf cat 2-4 output out.pdf
 pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf
 pdftk A=one.pdf B=two.pdf cat A1-7 B1-5 A8 output combined.pdf
+pdftk A=one.pdf B=two.pdf cat A1 B1W output combined.pdf # rotate West B1 (E,N,W,S)
+pdftk one.pdf two.pdf shuffle output combined.pdf # shuffle the two files (A1 B1 A2 B2 A3 B3...)
 </code>
+  * Encrypt/decrypt, set permissions, repair:
-Encrypt/decrypt, set permissions, repair:
 [[http://www.accesspdf.com/article.php/20041129175231241]]
+  * Rotate:<code>
+pdftk in.pdf cat 1-left 2-down output out.pdf
+</code>
+===== pdfjam =====
+  * split and merge:<code>
+pdfjam file1.pdf '-' file2.pdf '1,2' file3.pdf '2-' --outfile output.pdf
+</code>
+  * set multiple pages in one:<code>
+pdfjam --nup 2x1 --landscape true --frame false file.pdf
+</code>
+  * quickly rotate (pdf90, pdf180, pdf270):<code>
+pdf90 file1.pdf
+pdfjam --angle 180 in.pdf out.pdf
+</code>
+  * convert image to pdf in A4 format:<code>
+pdfjam --paper a4paper --outfile file.pdf file.jpg
+</code>
+===== sed =====
+  * crop pages (here remove 14% of page height at the bottom):<code>
+sed 's/MediaBox \[0 0 612 1008*/MediaBox \[0 145 612 1008]/g'<in.pdf >out.pdf
+</code>/!\ some tools such as pdftk or gs may consider the file as corrupted afterwards
+===== convert (image magick) =====
+Merge image files into a pdf file (but better use pdfjam for A4 conversion):
+<code>
+convert page-*.png -page A4 [-rotate 90] test.pdf
+convert -density 300x300 test.png test.pdf
+convert -units PixelsPerInch -density 300x300 -extent 2480x3508 -gravity center -background white test.png test.pdf
+</code>
+Convert pdf page into image file at resolution 300dpi:
+<code>
+convert -density 300x300 test.pdf test.png
+</code>
+Recompress the pages:<code>
+convert -quality 80 page-1.jpg page-1c.jpg
+</code>
+Erase a part of the image (especially useful for batch processing):<code>
+convert page-1.jpg -fill white -draw "rectangle 0,0 300,1753" page-1c.jpg
+</code>
+===== pdftotext =====
+To grep into a pdf file:
+<code>
+pdftotext file.pdf - | grep "text"
+</code>
+===== flpsed =====
+To add text on a pdf file.
+You can save the file, but it doesn't work with landscape oriented pages...
+===== Xournal =====
+To add text, drawings, and highlight a pdf file. More complete and less buggy than flpsed.
+===== PDF-XChange Viewer =====
+Can deal with real PDF annotations (yellow boxes).
+Software for Windows, but that works in Wine ([[http://www.tracker-software.com/product/pdf-xchange-viewer|download]] the exe installer).