Which program should I use if I want to draw/sketch to a .pdf files?
88515
What software can I use to write on PDFs?
54292
Creating fillable PDFs
132581
What free/open source image design programs can you recommend?
23195
How can I convert JPG into PDF easily?
126138
What are the benefits of PGFPlots/TikZ compared to importing PDF?
66587
What is the quickest way to open the pdf-manual for a given tex function or program?
67385
PDF in CMYK or RGB color space
55236
How do I combine two or more images to get a single pdf file?
54100
How to install a "pdf printer"?
26401
Is there an open source alternative to "Adobe Digital Editions"?
112652
Adobe Creative Suite alternative
34268
Exporting graphics to PDF - huge file
13250
How can I highlight or annotate PDFs?
75732
PDF Generation Library for Java
47805
Sketch-type graphics with transparency and dashed hidden lines?
72038
Software for drawing geometry diagrams
68273
How to Edit PDFs?