Manipulação de pdfs

PDFTK

Examples
Merge Two or More PDFs into a New Document
pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf

or (Using Handles):
pdftk A=1.pdf B=2.pdf cat A B output 12.pdf

or (Using Wildcards):
pdftk *.pdf cat output combined.pdf

Split Select Pages from Multiple PDFs into a New Document
pdftk A=one.pdf B=two.pdf cat A1-7 B1-5 A8 output combined.pdf

Rotate the First Page of a PDF to 90 Degrees Clockwise
pdftk in.pdf cat 1E 2-end output out.pdf

Rotate an Entire PDF Document's Pages to 180 Degrees
pdftk in.pdf cat 1-endS output out.pdf

Encrypt a PDF using 128-Bit Strength (the Default) and Withhold All Permissions (the Default)
pdftk mydoc.pdf output mydoc.128.pdf owner_pw foopass

Same as Above, Except a Password is Required to Open the PDF
pdftk mydoc.pdf output mydoc.128.pdf owner_pw foo user_pw baz

Same as Above, Except Printing is Allowed (after the PDF is Open)
pdftk mydoc.pdf output mydoc.128.pdf owner_pw foo user_pw baz allow printing

Decrypt a PDF
pdftk secured.pdf input_pw foopass output unsecured.pdf

Join Two Files, One of Which is Encrypted (the Output is Not Encrypted)
pdftk A=secured.pdf mydoc.pdf input_pw A=foopass cat output combined.pdf

Uncompress PDF Page Streams for Editing the PDF Code in a Text Editor
pdftk mydoc.pdf output mydoc.clear.pdf uncompress

Repair a PDF's Corrupted XREF Table and Stream Lengths (If Possible)
pdftk broken.pdf output fixed.pdf

Burst a Single PDF Document into Single Pages and Report its Data to doc_data.txt
pdftk mydoc.pdf burst

Report on PDF Document Metadata, Bookmarks and Page Labels
pdftk mydoc.pdf dump_data output report.txt

PSNUP

Step 1: Convert to ps

pdf2ps infile.pdf outfile.ps

Step 2: Use psnup to convert to multiple slides per pages (here 4)

psnup -l -d -pletter -4up infile.ps > outfile.ps

INKSCAPE

Com ele você pode redimensionar objetos, alterar textos, remover objetos.

inkscape arquivo.pdf