Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.


Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Universal configuration monitoring and system of record for IT.
Hide

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

Hide

News

May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!
Hide

Top Tags

Hide

Functions

Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Convert a single-page PDF to a hi-res PNG, at 300dpi

Terminal - Convert a single-page PDF to a hi-res PNG, at 300dpi
convert -density 300x300 input.pdf output.png
2011-01-28 00:36:31
2
Convert a single-page PDF to a hi-res PNG, at 300dpi

If you skip this part:

-density 300x300

you'll get a very lo-res image.

Alternatives

There are 4 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

I prefer to use pdfimages to extract the images embedded in the PDF: that's lossless; however it doesn't do the text, but I rarely need to get a flattened image of a PDF.

Comment by infinull 290 weeks and 1 day ago

You can try this free online pdf to png converter(http://www.online-code.net/pdf-to-image.html) to convert pdf to png in 300 dpi.

Comment by JonyGreen 45 weeks and 3 days ago

Just follow these guide pages to convert single-page PDF to Png image.

http://www.pqscan.com/convert-pdf/to-png.html

http://www.pqscan.com/pdf-to-image/

Comment by AdeleB 40 weeks and 5 days ago

Your point of view

You must be signed in to comment.