Choose the right tool
What needs to change in your document?
A page-count problem, a pixel-size problem and a file-size problem need different operations. Start with the file you have and the requirement it does not meet.
Match the problem to an operation
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I photographed handwritten pages
Check legibility first, then arrange supported JPEG/PNG images into a PDF. This creates page images; it does not recognize handwriting or add searchable text.
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I have several PDFs
Merge only when the destination requires one document. Check their order before saving and open the resulting PDF afterward.
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My PDF contains pages I do not need
Export the pages to retain. Separate comma-separated ranges create separate PDFs; merge the outputs if you need one file.
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My PDF exceeds the upload limit
Try a rewrite with PDF Compressor and measure the output. It does not downsample embedded images or guarantee any requested target size; an already optimized PDF may not shrink.
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I need the text from a PDF
Extract existing text and check its reading order. A scan with no text layer needs OCR elsewhere; extraction does not create missing text.
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I need PDF pages as pictures
Render PDF pages to images when the receiving application needs an image. This changes the output format, not the wording in the document.
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My image file has too many bytes
Try image compression, then compare the actual size and visual quality. A smaller-looking image on screen is not necessarily a smaller file.
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I need smaller pixel dimensions
Resize to the required width or height. Check that fine writing remains legible; resizing does not guarantee a particular byte size.
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I only need part of an image
Crop unwanted edges without cutting off required information. Cropping changes the area retained; resizing changes its dimensions.
Pixels, bytes and pages are different requirements
Read the actual portal instructions. Pixel dimensions measure image width and height; bytes measure storage; page count describes a PDF's contents. Check each requirement independently, including whether a stated MB limit uses decimal or binary units.
Do the minimum useful work
Clean up images only if needed, before making a PDF. Select required PDF pages before assembling multiple outputs. Compare the final size after assembly. If one correct file already satisfies the requirements, skip conversion, merging and compression.
Move files between tools yourself
Download an output, then select that saved file in the next tool. These pages do not upload files or automatically pass them between tools. Keep the original until you have checked the result.
Need the full inventory instead?
This guide chooses an operation across image and PDF formats. The PDF category lists the available PDF utilities together if you already know which one you want.
Put the choice into practice
Worked example
- Starting point
- Example requirements: width at most 1200 px and size at most 500,000 bytes. Image A is 2400 px wide; image B is 1000 px wide and 800,000 bytes.
- Decision and expected result
- A needs a dimensions check and resizing if those requirements apply. B already meets the width rule but needs a byte-size reduction. Measure the saved output; neither case requires every tool.
What this does not guarantee
- Compression cannot promise an arbitrary target size or preserve every complex PDF feature.
- PDF to Text extracts existing text; Image to PDF supplies no OCR.
- Browser processing guardrails are application choices for reliability, not universal device limits.
Last reviewed: · How we check tools and content