Software Alternatives & Reviews

QPDF VS Merge PDF (by Smallpdf)

Compare QPDF VS Merge PDF (by Smallpdf) and see what are their differences

QPDF logo QPDF

QPDF is a command-line program that does structural, content-preserving transformations on PDF...

Merge PDF (by Smallpdf) logo Merge PDF (by Smallpdf)

No file limit, no ad watermarks - a free and beautiful tool to combine your PDF files exactly the way you want it.
  • QPDF Landing page
    Landing page //
    2022-01-16
  • Merge PDF (by Smallpdf) Landing page
    Landing page //
    2023-05-02

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Category Popularity

0-100% (relative to QPDF and Merge PDF (by Smallpdf))
PDF Tools
57 57%
43% 43
Office & Productivity
0 0%
100% 100
PDF Editor
100 100%
0% 0
PDF Creator
100 100%
0% 0

User comments

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Social recommendations and mentions

Based on our record, QPDF should be more popular than Merge PDF (by Smallpdf). It has been mentiond 11 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

QPDF mentions (11)

  • Ask HN: What Underrated Open Source Project Deserves More Recognition?
    Qpdf[1], and, in particular, libqpdf, is the most useful PDF tool I've ever used, because it was the first library I found that works at the proper level of abstraction for dealing with the PDF file format on its own terms. In other words, the library directly exposes the essential PDF object structure (pages, dictionaries, strings, numbers, streams, etc.) for easy editing, while abstracting away as much of... - Source: Hacker News / about 2 months ago
  • Insecure Features in PDFs
    Given how well Preview.app and Safari work for viewing >99% of PDFs I actually encounter in the wild, this article makes Apple's engineering decisions look good. It also confirms many suspicions I've had over the years that have led me to, e.g., running all PDFs from questionable sources through VirusTotal before viewing on platforms where I wouldn't normally run antivirus software. The original article also... - Source: Hacker News / 2 months ago
  • Jim Keller criticizes Nvidia CUDA, x86 – 'CUDA's a swamp, not a moat, like x86'
    I know you're talking about GUI editing, but I've found libqpdf[1] incredibly useful for making programmatic PDF edits with minimal (typically no) structural disturbance. [1] https://qpdf.sourceforge.io. - Source: Hacker News / 2 months ago
  • Is ExifCleaner still okay to use? No updates in over a year.
    Exiftool edits to PDFs are reversible. The file needs to be re-linearized by a utility such as qpdf. See the exiftool PDF tags page and exifcleaner issue #111. Source: over 1 year ago
  • Is there any Adobe Acrobat DC/Pro-like PDF reader application in Linux?
    Page organization => If you want a gui, you could use pdfshuffler or pdfsam, though I usually use command like tools like qpdf (or pdftk, stapler, pdfjam, or even ghostscript). Source: almost 2 years ago
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Merge PDF (by Smallpdf) mentions (7)

  • How do I add two separate PDF pages together as a single PDF on iPad?
    So I'm sure there are more official ways to do this but I usually just go online to somewhere like https://smallpdf.com/merge-pdf. Source: over 1 year ago
  • Any tips for creating pdf files with some music you would like to learn to play?
    If you already have individual PDF files, you can combine them into one PDF with this tool: https://smallpdf.com/merge-pdf. Source: over 1 year ago
  • Need help with Enrollment Immunization Records process
    5) Now that you have your doctor-completed immunization record form, either scan it with a scanner or take pictures and upload them into a PDF (you can use a website like SmallPDF to do this). Next, you will take that document/PDF and upload it over here. While uploading, you will click a dropdown menu. For your initial Immunization Record form, you will select option 1 ("Immunization Record") from the choices. If... Source: almost 2 years ago
  • Different file formats ...
    On Canvas I restrict submission types to PDFs and I just include a link on each assignment description to SmallPDF. Source: about 2 years ago
  • Is this survey a good way to collect pain points?
    Examples of small tools that I'd want feedback on are PDF tools, conversion tools and spreadsheet tools. Source: over 2 years ago
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What are some alternatives?

When comparing QPDF and Merge PDF (by Smallpdf), you can also consider the following products

PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.

PDFManagerUltimate - Read, edit, and convert PDF files.

iSafePDF - iSafePDF is a free open source PDF protection software.

PDF Joiner - This online tool allows you to join several PDF documents into a single file, free of charge.

PDFsam - PDFsam Basic, a free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files

DocuPUB - DocuPUB is an online file converter, file merger, file compressor, and file resizing tool.