THE TOOLDU JOURNAL

A clearer way to get things done.

Practical guides for the files you work with every day. Start with a task, understand the options and know what to check before you download.

Real workflows. Clear limits. A useful next step.

A little knowledge goes a long way.

71 published guides
PDF · EN

How to trim extra margins from PDF pages

Choose your PDF and look at the page, blended or odd/even preview. Pick a view that makes it easy to see whether the page margins are consistent. Check every affected preview before cropping and downloading the PDF.

2 min read
Image · EN

How to resize a picture to the dimensions you need

Choose your images in Resize Image. Read the original dimensions in the preview before changing the width or height. Compare the actual output dimensions before downloading the files or ZIP.

2 min read
PDF · EN

How to make selected PDF pages grayscale

Open the PDF and choose the pages to convert. Keep a color original, especially when charts use color to distinguish their values. Create the PDF and compare the chosen pages with the original.

2 min read
PDF · EN

How to make filled PDF form fields part of the page

Fill in the form and save it first. Open that saved copy in Flatten PDF Forms, then look at the visible values before processing. Reopen the output in a PDF viewer and check that the form values remain visible.

2 min read
PDF · EN

How to make a PDF with fillable fields

Open the template and choose the form controls you want to add. Leave enough blank space for real answers rather than squeezing fields into the design. Apply the changes, download the PDF and test it in a PDF viewer that supports forms.

2 min read
Image · EN

How to make an image smaller with Tooldu

Open Compress Image, choose your photo and set the file size or image quality. Click Compress images, check the result and download your copy.

3 min read
PDF · EN

How to make a PDF smaller with Tooldu

Add your PDF to Compress PDF, choose a size limit or quality setting and press Start Compressing. Check the pages in the result, then download the smaller file.

3 min read
Image · EN

How to remove a photo background and fix missing parts

Choose a photo in Background Remover, compare the cutout with the original and use Restore from original if part of the subject is missing. Save as PNG to keep the background transparent.

3 min read