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
Audio · EN

How to try removing centered vocals from a stereo track

Add a stereo recording, adjust the center-separation controls and process it. Listen to the instrumental and vocal-center estimates before downloading. This method is not neural stem separation.

2 min read
Audio · EN

How to cut a short clip from audio or video

Open a supported audio file or a video with sound. The tool works with the first audio track. Wait for the waveform before setting the cut. Choose MP3, WAV, M4R, FLAC or OGG, then use Cut & Save and download the result.

2 min read
PDF · EN

How to edit a PDF without starting again

Open your PDF and click supported original text to edit it. Use Add text in this font for a separate addition in a verified embedded font, or choose an editing tool. Apply changes, inspect the saved preview and download a copy.

2 min read
PDF · EN

How to make one PDF from your pictures

Choose your pictures in Images to PDF. Supported formats include JPG, PNG, WebP and several other still-image formats. Arrange them in the order you want the pages to appear. Choose one combined PDF or separate PDFs, then create the result.

2 min read
Image · EN

How to enlarge a photo and check the real output size

Choose a photo, set a size preset or enlargement factor and select Fast enhancement or AI detail. Adjust the finish, enhance the image and check its actual output dimensions before downloading.

2 min read
Image · EN

How to blur a photo background while keeping the subject clear

Choose one photo. Leave automatic subject selection on for a first estimate, or turn it off to make a manual selection without an AI-model download. Compare the result, choose PNG, JPG or WebP and prepare the finished image.

2 min read
Audio · EN

How to make a recording easier to listen to

Add the audio or supported video recording and listen to the original. Decide whether you are preparing speech, a podcast or music. Process, listen to the real result and choose an output format before downloading.

2 min read
Video · EN

How to trim a video and save the part you need

Open a video, set the start and end times and choose whether to keep or remove the selection. Preview your edits, choose an output format and export a new clip.

2 min read
PDF · EN

How to straighten slightly tilted scanned PDF pages

Open the PDF and choose the pages that need straightening. Look at the direction of a long text line rather than the edge of a photographed desk. Create the result and compare it with the original scan.

2 min read