Questions tagged [pdf]

The Portable Document Format (PDF) is an ISO standard electronic file-format. Question about PDF can be about reading, converting, creating and editing such files.

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1 answer
470 views

I would like to view full cover of converted pdf ebook originally purchased on Kindle Store

I would like to view full cover of pdf ebook originally purchased on Kindle Store and then converted with Ultimate. I see the thumbnail on my adobe reader app on my ios device. I would like to know ...
1 vote
1 answer
466 views

How to delete the comment in the pdf?

I've tried using Adobe Reader and Adobe Acrobat to delete a comment in a pdf file. The comment was restored the moment I deleted it. How to delete it? File: https://github.com/mjs225/deletepdf/raw/...
0 votes
1 answer
344 views

Best PDF app reader for iPad that emulates the paper book experience

Good day. I've used before PDF Expert by Readdle. But I really dislike seeing the gray spaces where the PDF ends and doesn't fit the entire screen. Now, I know that this is not "possible" per se, ...
0 votes
1 answer
83 views

How can I convert a PNG to a PDF, where the width of the PNG is fitted to a page size, and it is broken apart into pages?

This seems like it ought to be obvious, but is anything but. I'm working in Windows. Suppose I have a PNG that is say, 1,200 by 6,000 pixels. I would like to be able to convert it to a PDF, such ...
1 vote
2 answers
206 views

Possibility of converting a PDF containing equations to MOBI

I have a PDF with lots of equations which gets distorted when converted to MOBI format using Calibre. Is there any reliable way of doing that? The equations in the PDF might have been written using ...
4 votes
1 answer
861 views

How does Google Play choose page number / how to influence it?

Our book has quite simple page numbering: 1, 2, 3 and so on. (We don't use any special numbering for the first pages, e.g.: the book title is on the page 1, technical information about the book is on ...
0 votes
2 answers
127 views

PDF Compressor online / software

I have a very large ebooks; I would like to reduce their sizes while maintaining the highest possible quality. Is there a best PDF compressor software or online website that I can upload my private ...
1 vote
2 answers
281 views

A nice platform for selling PDF books like Google Play. Any suggestions?

I'm an author who are currently selling books on Google Play. The service works really good and has a wide support for mobile devices etc. The huge downside is its limitations when it comes to ...
4 votes
2 answers
1k views

How to convert Kindle format (.mobi or .azw) with annotations to PDF?

I'm looking for a way to convert a Kindle book, with several annotations in it, to PDF format, so that my annotations are also saved in the PDF file. Converting from .mobi or .azw to PDF seems pretty ...
3 votes
2 answers
5k views

How to convert a html ebook to a pdf file?

Is there some program which can convert a html ebook (consisting of many html files located under different directories and linked to each other) to a pdf file? For example, some shell scripting (e.g. ...
39 votes
15 answers
83k views

How to create clickable table of contents in a PDF?

I have many technical PDF ebooks where there are no chapters (no clickable table of contents or other means for quick navigation through a document) and therefore it's really painful to search for ...
0 votes
0 answers
164 views

How to remove any kind of selectable fields in PDF

I am trying to remove these selectable fields from this PDF. The goal is to remove them and then run them through an OCR so that I make a searchable PDF. I have managed to make the PDF searchable ...
5 votes
8 answers
620 views

Merge PDF files

I already read the thread how to merge epub files but Is there any way by which I can merge different pdf files into one. Earlier I have tried an app for this purpose but I lost all my pdf files after ...
7 votes
2 answers
2k views

How to convert scanned pdf to text?

I recently downloaded a programming book. All pages are in image format. If I want to run a code, I'm unable to copy it from that ebook. How to convert these kind of pdfs to normal pdf. I google but I ...
0 votes
0 answers
27 views

Why doesn't my PDF have updates made to the original EPUB?

In Calibre, I went in the editor and edited an EPUB and everything is fine; even sent the updated book to my Kindle and the updates are there. When I convert to PDF in Calibre and save to disk the ...
19 votes
10 answers
90k views

How can I translate my ebook?

I downloaded an important PDF e-book but it is not in English. Is there a software or another way I can translate the entire e-book into English or another language?
0 votes
0 answers
19 views

Google play books reader inbuilt dictionary does not work for pdf ebooks

I like the Google play books reader app. I generally have ebooks in PDF format. I frequently use the dictionary feature but this feature does not work for PDF ebooks. So I need to convert them in EPUB ...
7 votes
0 answers
250 views

Does Kindle (classic) support all embedded fonts in PDFs?

I have PDFs using many embedded fonts from many alphabets. Should I expect them to be viewed without any problems on Kindle, or only a part of them will be supported (for the most popular alphabets)?
1 vote
1 answer
87 views

How to fit the size of a font to fit a PDF fillable box

More of a pdf editing question. A lot of PDF forms restrict you to put 1 letter in each box when filling them Something like this: Has anyone found a way to fill these forms via computer ? Very hard ...
1 vote
2 answers
1k views

Convert PDF to Epub, advanced features

I've read all similar questions here, and most of the answers suggest using calibre for this task, however, I'm trying to improve the output. Here I explain: I've extracted text from a PDF using ...
1 vote
0 answers
33 views

Looking for a PDF reader for Windows with good usability in tablet mode

I have a Surface Pro 7, and when I bought it, I intended to use it for reading A4 sized PDF books. Now I find that I almost never do so, because of low app usability. The features I am looking for in ...
2 votes
1 answer
241 views

How can I "name" PDF pages?

I'm trying to export a PDF of a scanned book. Regardless of whether I try to use GIMP or LibreOffice Draw, I can't seem to name any of the cover pages! I want to have the page numbers on the exported ...
7 votes
4 answers
8k views

How convert multi-column PDF files to readable PDF in 6 inches display devices?

What is the best way to convert multi-column PDF file into readable format in a 6 inch display devices like kindle?
1 vote
0 answers
45 views

Is there any best reader in all devices?

I have been using readera, xodo & kindle in my mobile for reading epub, mobi. Usually I read pdfs through default pdf Acrobat in the mobile. Also I'm using Ms edge for pdf, ice cream for epub ...
7 votes
3 answers
3k views

I am looking for a software or a way to list, extract, count, in short, analyze a book which is in epub or pdf format

As someone who is interested in learning languages, I want to find a way to know the each word and their repetitions inside a book that I am going to read.
2 votes
1 answer
57 views

What are "open" and "closed" settings in PDF bookmarks?

This is an excerpt extracted from the PDF bookmark, using JPdfBookmarks: Believe It or Not: Scientific Progress!?/44,Black,notBold,notItalic,closed,FitPage The Whole Is More Than the Sum of ...
0 votes
1 answer
78 views

Where to buy non-kindle-format (epub,azw) e-books which look like the printed books?

If I want to buy e-copy of academic books, most of the publishers (Oxford, Cambridge, etc.) direct to amazon store or allow epub version. However, I do not want the e-pub or other formats (e.g. azw) ...
9 votes
2 answers
10k views

How to export (or share) a highlighted PDF from Kindle Reader?

I can email a PDF to my Kindle Fire Device. I can highlight and take notes in that PDF. I can export the notes and the highlighting. BUT I see no way to share/export the PDF with the highlights. ...
3 votes
0 answers
382 views

What (if any) are the current models of e-readers with good pdf text reflow?

I've had my I-river Story HD for ages (I think since 2013 or something), but I managed to damage the screen by dropping it, and now it's basically unreadable with all sorts of black lines going across ...
1 vote
3 answers
259 views

How can I compress this pdf file without losing readability?

I have a large black and white pdf scan of a book. The book is 1700 pages, and is about 300MB. That is about 150-175kb per page. This strikes me as rather large. Two arbitrarily selected pages are ...
1 vote
0 answers
16 views

What iOS or Android PDF readers have a "go back" functionality?

I am looking for a PDF reader that can handle large PDFs efficiently... but, importantly, allow the user to go back to a previous page once they follow a link. It seems to me this feature should be ...
1 vote
0 answers
81 views

Calibre cuts full anime pages

I have a quick question about calibre. My process is that is have a folder with JPG's of a manga that I read, I then zip that folder into a zip file and run it through calibre to get a PDF file in the ...
88 votes
13 answers
103k views

Reading PDFs on Kindle device

I have many interesting books and documents in PDF format. Can I read PDFs on Kindle in comfortable way? My concern is, that PDFs are adapted to the print page size and Kindle screen is much smaller....
2 votes
2 answers
815 views

JPG loses quality during ePUB to PDF conversion with calibre

I have a ePUB with a bunch of formulas as JPG files. In the ePUB they are super crisp, but during ePUB to PDF conversion with calibre all the images become blurry, I'd imagine they are JPG compressed. ...
15 votes
2 answers
7k views

Conversion of djvu file into pdf file without increasing file size

Why does converting a djvu file to pdf increase the size of the file? How can we convert a djvu to a pdf without increasing the size?
0 votes
0 answers
59 views

Creating a PDF File

I have a folder that contains subfolders with different files inside them (html, css, images, audio files ...). It's basically the contents of a book. How can I create a PDF file from this folder, is ...
1 vote
0 answers
309 views

Amazon Kindle Fire won't allow allow links in PDFs to work

On my Kindle Fire I opened the PDF via the silk browser. The PDF contains links. On my iOS device I can click on the links in the PDF. On my Kindle Fire the links don't work.
0 votes
1 answer
540 views

How to convert PDF's with footnotes for Kindle?

I have a collection of PDF files which I'm looking to load onto a Kindle. First, however, they need to be converted. Experimentation gives sub-par results by selecting and converting to mobi through ...
2 votes
2 answers
227 views

Is it possible to only extract text from a PDF file for free?

Even if I download books in mobi or epub format for my Kindle, I’ve noticed that files with lots of images/graphs disrupt the formatting. Is there a way to delete all the images from a PDF file for ...
2 votes
1 answer
45 views

want to convert OCR PDF to computer font

my pdf text is too blurry. so i want to convert it to computer font from scanned image.i already tried increassing quality by adobe/edit/preferences/page display.
-1 votes
1 answer
327 views

Creating books for CreateSpace in InDesign

I'm working on some code to (amongst other tasks) help export an indesign document to a PDF suitable for CreateSpace submission. I've been looking around for the answers to my questions online, but ...
1 vote
0 answers
15 views

pdf TOC creator for large files upwards of 120MB?

I used to use jPDFbookmark's bookmarks feature to create/adjust tables of contents for PDf files, and it worked perfectly well to that end until I input 130MB file and it was no longer functional, ...
-1 votes
1 answer
37 views

pdf with links to different books / folders

I hv received pdf with links to tv shows on tv; another pdf with links to different books (stored in google drive.) So you click on the picture and it takes you to the pdf book and opens it. I have ...
0 votes
0 answers
22 views

Is there a tool for heading detection?

Given a PDF without a TOC or bookmarks, is there a way to create a TOC by automatically detecting the headings?
5 votes
4 answers
320 views

How to write a presentation slide using pdf

I want to create a PDF that can look like¹: This kind of format is good for presentation, since you can reveal items as you read downwards. I would like to know which application I can use to built ...
2 votes
2 answers
3k views

Scan epub and pdf to ascertain absence of malware

Is it possible to verify the absence of malware in epub and pdf files?. I'm using a MacBook Air, macOS Catalina, and iPad mini iOS 13. What program can I use?
2 votes
0 answers
28 views

Redefining "Page 1" in a djvu or pdf document

For context, I'm a graduate student and I rely on the indexes of digitized books pretty heavily. It is annoying that the page numbers in djvu/pdf files almost always fail to align with those of the ...
1 vote
0 answers
67 views

How to make the entries of an existing table of contents clickable as link to the corresponding pages?

I have many eBooks as PDF from SpringerLink, which I use for research purposes. The eBooks have indeed a table of contents (with more than 50 entries sometimes), but unfortunately it is not clickable. ...
20 votes
9 answers
91k views

What is a good software for reading ebooks out loud?

I enjoy having the ebooks read out loud. My previous solution has always been to highlight the chapters I want to read and then turn on voiceover in Adobe Reader on my Mac. The advantage is that I can ...
3 votes
2 answers
47 views

How to bundle 5 PDF ebooks into 1 file for download

How to bundle 5 PDF ebooks into 1 file for download I have 5 PDF eBooks that I sell I want to have these 5 PDF file into 1 file