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Resize PDF

Resize PDF

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How to Add Margins to PDF Documents

Below we show how to add whitespace padding to PDF documents online.

Upload your files

Files are safely uploaded over an encrypted connection. Files stay secure. After processing, they are permanently deleted.

Rather not upload your files and work with them offline?
Try Sejda Desktop. Same features as the online service, and the files never leave your computer.

Click ‘Upload’ and select files from your local computer.

Dragging and dropping files to the page also works.

Dropbox or Google Drive files

You can pick PDF files from Dropbox or Google Drive too.

Expand the ‘Upload’ dropdown and select your files.

Step 2: Margin size

Type a value for the page size, in inch. Use the up/down arrows to change.

The page preview will update, showing the margin added to the PDF pages.

Tip: Apply to all pages in the document or just a few

You can specify only few pages that need the margin. Click on the page thumbnails to select them.

Ready to add margins to your PDF pages? Let’s go!

Below we show how to resize PDF pages online.

Step 3: Resize PDF pages

Choose from one of the standard paper sizes (A3, A4, etc) or input a custom page size.

Tip: All pages or just a few

By default all pages of the document will be resized. Want to resize only few pages? Select specific pages by clicking on them.

Image Resizing Made Easy With PHP

Ever wanted an all purpose, easy to use method of resizing your images in PHP? Well that’s what PHP classes are for — reusable pieces of functionality that we call to do the dirty work behind the scenes. We’re going to learn how to create our own class that will be well constructed, as well as expandable. Resizing should be easy. How easy? How about three steps!

Premium Image Resizing Scripts

Before we get into the step-by-step process, let’s look at a few premium options from CodeCanyon. There are dozens of image resizing scripts and plugins to choose from—here’s a quick look at some of them.

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1. Image Resizer And Thumbnail Creator

This is a simple PHP class that resize images on the fly. If you are using any PHP-enabled webserver, and have any kind of image viewer, this script is ideal for you. It always retains the aspect ratio, so the resized image keeps its form.

2. anySize — Caching image resizer

anySize is a lightweight, drop-in, fully automated, caching, make-you-coffee-and-serve-it-in-bed script that lets you request and generate images (jpg, gif or png) of any size.

3. Magento Image Resize

This Magento plugin allows you to set the maximum image width and height that can be uploaded for the catalog image. It also reduces the file size of the catalog image. It will help you reduce your disk space usage as the images will be resized and compressed.

4. Image Resizer And Watermark Maker

This PHP Class helps you to resize any photos and make your personal watermark.

5. RezImage — Easy Bulk Image Resizing

RezImage is a simple and flexible bulk image resizing tool, perfect for web designers or online shop owners. This tool allows you to resize an entire folder full of images, no matter how many there are—just load the folder with the images, set the width and height and nothing more. Includes some resolution presets like VGA, HD, QXGA, QSXGA, etc… but you can also set your own.

Introduction

To give you a quick glimpse at what we’re trying to achieve with our class, the class should be:

  • Easy to use
  • Format independent. I.E., open, resize, and save a number of different images formats.
  • Intelligent sizing — No image distortion!

Note: This isn’t a tutorial on how to create classes and objects, and although this skill would help, it isn’t necessary in order to follow this tutorial.

There’s a lot to cover — Let’s begin.

Step 1 Preparation

We’ll start off easy. In your working directory create two files: one called index.php, the other resize-class.php

Step 2 Calling the Object

To give you an idea of what we’re trying to achieve, we’ll begin by coding the calls we’ll use to resize the images. Open your index.php file and add the following code.

As you can see, there is a nice logic to what we’re doing. We open the image file, we set the dimensions we want to resize the image to, and the type of resize.
Then we save the image, choosing the image format we want and the image quality. Save and close your index.php file.

From the code above you can see we’re opening a jpg file but saving a gif. Remember, it’s all about flexibility.

Step 3 Class Skeleton

It’s Object-Oriented Programming (OOP) that makes this sense of ease possible. Think of a class like a pattern; you can encapsulate the data — another jargon term that really just means hiding the data. We can then reuse this class over and over without the need to rewrite any of the resizing code — you only need to call the appropriate methods just as we did in step two. Once our pattern has been created, we create instances of this pattern, called objects.

«The construct function, known as a constructor, is a special class method that gets called by the class when you create a new object.»

Let’s begin creating our resize class. Open your resize-class.php file. Below is a really basic class skeleton structure which I’ve named ‘resize’. Note the class variable comment line; this is were we’ll start adding our important class variables later.

The construct function, known as a constructor, is a special class method (the term «method» is the same as function, however, when talking about classes and objects the term method is often used) that gets called by the class when you create a new object. This makes it suitable for us to do some initializing — which we’ll do in the next step.

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Note that’s a double underscore for the construct method.

Step 4 The Constructor

We’re going to modify the constructor method above. Firstly, we’ll pass in the filename (and path) of our image to be resized. We’ll call this variable $fileName.

We need to open the file passed in with PHP (more specifically the PHP GD Library) so PHP can read the image. We’re doing this with the custom method ‘openImage’. I’ll get to how this method
works in a moment, but for now, we need to save the result as a class variable. A class variable is just a variable — but it’s specific to that class. Remember the class variable comment I mentioned previously? Add ‘image’ as a private variable by typing ‘private $image;’. By setting the variable as ‘Private’ you’re setting the scope of that variable so it can only be accessed by the class. From now on we can make a call to our opened image, known as a resource, which we will be doing later when we resize.

While we’re at it, let’s store the height and width of the image. I have a feeling these will be useful later.

You should now have the following.

Methods imagesx and imagesy are built in functions that are part of the GD library. They retrieve the width and height of your image, respectively.

Step 5 Opening the Image

In the previous step, we call the custom method openImage. In this step we’re going to create that method. We want the script to do our thinking for us, so depending on what file type is passed in, the script should determine what GD Library function it calls to open the image. This is easily achieved by comparing the files extension with a switch statement.

We pass in our file we want to resize and return that files resource.

Step 6 How to Resize

This is where the love happens. This step is really just an explanation of what we’re going to do — so no homework here. In the next step, we’re going to create a public method that we’ll call to perform our resize; so it makes sense to pass in the width and height, as well as information about how we want to resize the image. Let’s talk about this for a moment. There will be scenarios where you would like to resize an image to an exact size. Great, let’s include this. But there will also be times when you have to resize hundreds of images and each image has a different aspect ratio — think portrait images. Resizing these to an exact size will cause severe distortion.If we take a look at our options to prevent distortion we can:

  1. Resize the image as close as we can to our new image dimensions, while still keeping the aspect ratio.
  2. Resize the image as close as we can to our new image dimensions and crop the remainder.

Both options are viable, depending on your needs.

Yep. we’re going to attempt to handle all of the above. To recap, we’re going to provide options to:

  1. Resize by exact width/height. (exact)
  2. Resize by width — exact width will be set, height will be adjusted according to aspect ratio. (landscape)
  3. Resize by height — like Resize by Width, but the height will be set and width adjusted dynamically. (portrait)
  4. Auto determine options 2 and 3. If you’re looping through a folder with different size photos, let the script determine how to handle this. (auto)
  5. Resize, then crop. This is my favourite. Exact size, no distortion. (crop)
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Step 7 Resizing. Let’s do it!

There are two parts to the resize method. The first is getting the optimal width and height for our new image by creating some custom methods — and of course passing in our resize ‘option’ as described above. The width and height are returned as an array and set to their respective variables. Feel free to ‘pass as reference’- but I’m not a huge fan of that.

The second part is what performs the actual resize. In order to keep this tutorial size down, I’ll let you read up on the following GD functions:

We also save the output of the imagecreatetruecolor method (a new true color image) as a class variable. Add ‘private $imageResized;’ with your other class variables.

Resizing is performed by a PHP module known as the GD Library. Many of the methods we’re using are provided by this library.

Step 8 The Decision Tree

The more work you do now, the less you have to do when you resize. This method chooses the route to take, with the goal of getting the optimal resize width and height based on your resize option. It’ll call the appropriate method, of which we’ll be creating in the next step.

Step 9 Optimal Dimensions

We’ve already discussed what these four methods do. They’re just basic maths, really, that calculate our best fit.

Step 10 Crop

If you opted in for a crop — that is, you’ve used the crop option, then you have one more little step. We’re going to crop the image from the
center. Cropping is a very similar process to resizing but with a couple more sizing parameters passed in.

Step 11 Save the Image

We’re getting there; almost done. It’s now time to save the image. We pass in the path, and the image quality we would like ranging from 0-100, 100 being the best, and call the appropriate method. A couple of things to note about the image quality: JPG uses a scale of 0-100, 100 being the best. GIF images don’t have an image quality setting. PNG’s do, but they use the scale 0-9, 0 being the best. This isn’t good as we can’t expect ourselves to remember this every time we want to save an image. We do a bit of magic to standardize everything.

Now is also a good time to destroy our image resource to free up some memory. If you were to use this in production, it might also be a good idea to capture and return the result of the saved image.

Conclusion

Well that’s it, folks. Thank you for following this tutorial, I hope you find it useful. I’d appreciate your feedback, via the comments below.

How to Resize an Image: 5 Easy Ways

girl in the flowers

Almost any PC user needs to resize a large image for a particular reason or just to free up some space on the hard drive. In fact, changing photo size is a very simple task, as all you need is likely to be already installed on your PC. Follow the guide below and you’ll learn how to resize your pictures using 5 simple tools:

    , , , ;
  • online tool PicResize.

Way 1. How to resize an image in Microsoft Paint

  1. Find and launch MS Paint. It’s pre-installed on all Windows OS versions. Go to Start > All Programs > Accessories > Paint or just type Paint in Start searh bar. How to Change Picture Size Using Paint and Microsoft Viewer
  2. Add your image by drag-‘n-drop or Menu > Open (Ctrl+O).
  3. On Home tab find the button Resize and click it.resize image in paint
  4. You’ll see the Resize and Skew box, where you can change picture size by percentage if don’t know or have an exact figure. Alternatively, you may set the desired size in pixels. Don’t forget to check Maintain aspect ratio. Otherwise, you image will be stretched.How to Change Picture Size Using Paint and Microsoft Viewer
  5. Click OK and save your picture.
  • If you can’t attain the needed photo size without stretching it, you may use the Cropping tool to delete unwanted borders. See here how to do this (#3).
  • To open photos faster, use right mouse button menu option “Open with Paint”.
  • It’s better to save an image in the same format as the original.
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Way 2. How to change image size in MS Photo Gallery

  1. If you don’t have Microsoft Photo Gallery installed on your PC (Start > Photo Gallery), you need to download and install it as a part of Windows Essentials 2012.
  2. Run MS Photo Gallery and find your graphic file.
  3. Press right mouse button and choose Resize… photo gallery
  4. Choose a ready preset: Smaller 640 pixels, Medium 1024, Large 1280, etc.Windows-live-photo-gallery-resize
  5. Click Resize and Save. The resized image will appear in the same folder, the original one will also remain.
  • If you need the exact picture size, in the dropdown menu pick up Custom and set the maximum dimension of your photo.
  • To resize several photos at once, just hold down the Ctrl key and choose all pictures you want to resize.

Way 3. How to resize a photo with PhotoScape

  1. Download and install PhotoScape here. Run the program.
  2. Go to the Editor tab and find the photo you want to resize.
    photoscape resize photo
  3. At the bottom your image find the Resize button and click it.
  4. Set the new photo size. Make sure the option Preserve aspect ratio is checked and click OK.photoscape resize photo
  5. Save the edited image.
  • If you need to resize multiple images, use the Batch Editor tab. Add a folder and resize all photos in it.
  • In case you don’t know the exact size, you may adjust the Ratio percentage of the original size.
  • PhotoScape has a plenty of hidden features, learn about them here.

Way 4. How to change image size using IrfanView

  1. Get IrfanView – a great tiny tool for image viewing and most picture editing needs.
  2. Add a photo you want to resize via drag-‘n-drop or by clicking the first button on the panel bar.
    Irfanview open photos
  3. Go to the Image tab, choose Resize/Resample (Сtrl+R).
  4. Set the new size in pixels, centimeters or inches, or as percentage of the original image.irfanview resize photos
  5. Save the picture.
  • You may use standard dimensions to resize your picture: 640×480 pixels, 800×600 pixels, 1024×768 pixels, etc.
  • In order to keep the best quality of your photos, make sure the DPI figure is not less than 300.
  • Learn other tricks with IrfanView in this post.

Way 5. How to resize an image online

  1. Go to PicResize website.
  2. Click Browse to select your picture. Press Continue. PicResize tool
  3. Choose the percentage of the original image, e.g. 50% smaller. The tool will give you the estimated final size. Alternatively, you may input the exact size by choosing Custom Size option in the dropdown menu.
    PicResize
  4. Once ready, press I’m Done, Resize my Picture and wait a bit.
  5. Then you’ll be able to preview your new image, save it to PC, resume edit or share image in the social media.
    picresize final
  • You can resize an image from the Internet, without saving it to your PC. Just change From Computer to From URL.
  • Limit output image file size to a certain value and the tool willautomatically adjust its quality.
  • With PicResize you may also do batch resizing. In Tools choose Resize Bulk Photos, add multiple files and resize all images in the same way.
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We hope you managed to complete the task of image resizing using our tips. So now it’s high time to learn how to make a slideshow with music using Freemake Video Converter!

Free Online Image Editor

The Free Online Image Editor lets you edit images ONLINE!

  • Resize or Crop all (animated gif) images.
  • Merge, Blend and Overlay Images with the editor.
  • Add Text with your own fonts to an (animated) image.
  • Add Borders, round corners and shadow to your photo.
  • Put an image in a Photo Frame or add a Mask.
  • Overlay images with predefined animations!
  • Convert, sharpen, reduce size of an animated gif.
  • Use the Cut Out Tool to make a heart shape image.
  • Create a Glitter Image of your own.

image edit girl

Upload an Image

  • Upload an Image
  • Upload From URL
  • Create Canvas

Why use an online photo editor?

First of all, you can use it from anywhere!

The Online Image Editor is created in such a way that it is always accessible without having to install any extra software. From your workplace, at school or at home, as long as you have an internet connection you can use the editor.

It is the easiest method to edit an image in a clean and fast manner from PC, Laptop, iPad, Tablet and Mobilephone.

It works on all formats like: PNG, JPG/JPEG, BMP (Bitmap) or animated GIF.

You can even upload your own fonts to the editor and use them to add text to a photo, with your OWN fonts.

And did I already mention that it is FREE to use? Yes I did!

image edit devices

Features on your keystrokes

Resize & Crop

Add Text

Gif Editing

Image Filters

Animated Masks

Fast and simple Edit Tools

All basic functions are available: Cut, Resize and Crop. These features work on all image formats, even on animated GIFs and transparent PNG’s

With the Text Tool you can add text to your images. Also add text to animated images is simple and fast. With extra options you can add a border around your text and make the text follow an arc path so it looks like text around a cricle. With the shadow option you can add different kind of shadow colours and blurs to the text.

Merge two images together or blend multiple images. With the opacity setting you can blend images the way it suits you most. Editing an image here is so easy and fast that starting Photoshop takes longer.

Add an animated image onto a static background or add falling snow onto a picture. Your imagination is the limit to create nice dynamic images.

Make an image Tranparent with the Transparency tool. Make the background of an image transparent by simply clicking on the colour that needs to become transparent. Or remove transparency from your image.

Put an Image in Text, including a drop shadow and with transparent background. Who needs Photoshop?!

Add falling rain to an image. How wet is that?

You can even upload your own fonts to the editor and use them to add the text. Just choose your own font from your device and upload it to use it.

Stop reading and start editing!

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What they say

We are happy to receive such amazing compliments on our free online image editor tool.

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