![]() In the hypothetical case that it makes absolutely no legal difference, it could be automated. This wastes time, money, paper and adds no discernable security to the truly shitty security mechanism that is signing things with ink. that we fill the digital form in, then print it, sign it and then scan it in again. Many business demand “wet ink” signatures on signed PDFs, i.e. Have both been recommended to me but I have not tried them. Special power: extracting PDF attachments. This has been ported to java as pdftk-java and also has a gui called PDF Chain. There is also PDFtk which has a handy command line. The following command extract pages 1 to 5, page 7 and pages 8 to 12 from file.pdf and puts it in outputfile.pdf texexec -pdfselect -select=1:5,7,8:12 -result=outputfile.pdf file.pdf I do not have a favourite yet on other systems.Īntoine Chambert-Loir points out the underdocumented command texexec has You can split PDFs also with ghostscript, but usually you want a GUI to see what you are splitting, no? Poppler is fairly ubiquitous and odds are good it is already installed. Pdfunite is the poppler concatenate command. There is a right click PDF merge in the Finder though. UPDATE: now that python no longer ships with macos, this python2 script is still available but tedious to execute. It is easy and robust and seems to work on any PDF that macos understands without damaging the contents.Īlso the PDFs it creates have a size approximately equal to the sum of the parts and not mysteriously much much larger. Tl dr "/System/Library/Automator/Combine PDF Pages.action/Contents/Resources/join.py" \ On macos there is system PDF concatenation. The QPDF version is not much more intuitive but seems to mangle the PDF less: qpdf -empty -pages *.pdf - out.pdf Sometimes it is lossy and the fonts are mangled. This sometimes works, and sometimes behaves badly in ways that I have not investigated - the output file can be massive, much larger than the sum of its parts. dPDFSETTINGS=/prepress -sOutputFile=output.pdf input*.pdf Tl dr To concatenate PDFs on macOS I use join.py.Ĭoncatenating PDFS is where qpdf excels over ghostscript, although ghostscript is older and so has more HOWTOs.Ī classic that I see around, is this ghostscript command to concatenate PDFs: gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite \ I need to do this so often that I may yet get around to making a keyboard shortcut for it. For example, programs generate simple PDF files but can’t password-protect them, web-optimize them, or perform other transformations of that type. However, once you have a valid PDF file, QPDF can be used to transform that file in ways perhaps your original PDF creation can’t handle. If you are looking for something that can do that, you should look elsewhere. In particular, QPDF knows nothing about the semantics of PDF content streams. QPDF is not a PDF content creation library, a PDF viewer, or a program capable of converting PDF into other formats. QPDF includes support for merging and splitting PDFs through the ability to copy objects from one PDF file into another and to manipulate the list of pages in a PDF file. It also provides many useful capabilities to developers of PDF-producing software or for people who just want to look at the innards of a PDF file to learn more about how they work. It could have been called something like pdf-to-pdf. QPDF is a command-line program that does structural, content-preserving transformations on PDF files. qpdf/qpdf: Primary QPDF source code and documentation.QPDF: A Content-Preserving PDF Transformation System.
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