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What's the best free app to modify pdf files on android?
So not just viewing a pdf file, but actually making changes in it, like filling out a form with additional information.
Thanks in advance for any suggestions!
On Sat, 14 Jun 2025 19:57:34 +0200, sobriquet wrote :
What's the best free app to modify pdf files on android?
So not just viewing a pdf file, but actually making changes in it, like
filling out a form with additional information.
Thanks in advance for any suggestions!
I don't know the answer, so I hope someone pitches in with the answer.
However, I know of another group you can ask, which is comp.text.pdf
<https://tinyurl.com/comp-text-pdf>
<https://tinyurl.com/nova-comp-text-pdf>
In addition, you can easily convert a PDF to Microsoft Word where, if the
PDF is actual text (and not a bitmap image), you can edit it in MS Word.
<https://calibre-ebook.com/download>
In addition, there are also online PDF editors....
<https://www.adobe.com/acrobat/online/pdf-editor.html>
Looking for you in Skyica for an Android PDF editor
PDFgear for Android seems to have the most free editing of PDFs I think
Sejda PDF Editor apparently has some free editing limited by size
iLovePDF is better for merging & splitting but it does some edits for free
Xodo PDF Reader & Editor apparently has "some" free PDF editing features
PDFelement by Wondershare seems to have some elements of editing for free
Foxit PDF Editor also has "some" PDF editing for free but not much
Adobe Acrobat Reader only has the most rudimentary of free PDF changes
Please note that while I've been using PDFs for longer than anyone here
most likely (since I started using PDFs before anyone knew about it - see sig), I am NOT an expert on free PDF editors on Android by any means.
Those on the c.t.p group *are* experts, so I will defer to them to help. Please do let us know what works best for you as we learn from helping.
On the PC I've tried open office with a pdf extension ...
On Sun, 15 Jun 2025 06:49:18 +0200, sobriquet wrote:
On the PC I've tried open office with a pdf extension ...
Are people still using OpenOffice instead of LibreOffice??
On 15.06.25 07:58, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 06:49:18 +0200, sobriquet wrote:
On the PC I've tried open office with a pdf extension ...
Are people still using OpenOffice instead of LibreOffice??
I strongly recommend not to that: The support and development of OO was stopped a while ago. This office suite is not secure anymore.
Mistral AI states relatively carefully:
Is Open Office as secure as Libre Office?
Both Apache OpenOffice and LibreOffice are open-source office suites
that prioritize security, but there are some differences in their
development models and update frequencies that can impact their security.
LibreOffice is generally considered to have a more active development community and more frequent updates. This can be an advantage in terms
of security because updates often include patches for newly discovered vulnerabilities. The Document Foundation, which oversees LibreOffice,
also has a dedicated security team that handles security issues.
Apache OpenOffice, on the other hand, has a smaller development
community and less frequent updates. This can sometimes result in slower responses to security vulnerabilities. However, the Apache Software Foundation, which oversees OpenOffice, also takes security seriously and
has processes in place to handle security issues.
In terms of features and functionality, both suites are quite similar,
as they both originated from the same codebase (OpenOffice.org). The
choice between the two often comes down to personal preference, specific feature needs, or the importance of frequent updates.
In conclusion, while both suites are secure, LibreOffice's more active development and frequent updates might give it a slight edge in terms of security. However, both are viable options for users seeking a secure, open-source office suite.
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
On 15.06.25 10:17, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
And btw: It is basically common knowledge.
Mistral AI states relatively carefully:
On Sun, 15 Jun 2025 10:35:53 +0200, Jörg Lorenz wrote:
On 15.06.25 10:17, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
And btw: It is basically common knowledge.
So the only way you could be sure the AI was trustworthy was because it
told you something you already knew?
On the PC I've tried open office with a pdf extension, but that doesn't
seem to work very well, though it might vary depending on the type of pdf.
With the pdf that I tried, I wasn't very satisfied with the free online version of ms-word either in the way it handled the pdf.
I'll give the free adobe pdf-editor webapp a try to see how that works.
On Sun, 15 Jun 2025 13:07:09 +0200, Jörg Lorenz wrote:
On 15.06.25 10:55, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 10:35:53 +0200, Jörg Lorenz wrote:
On 15.06.25 10:17, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
And btw: It is basically common knowledge.
So the only way you could be sure the AI was trustworthy was because it
told you something you already knew?
OT and EOD in this subthread.
I hope you have learned a lesson about relying on AI.
On 15.06.25 10:55, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 10:35:53 +0200, Jörg Lorenz wrote:
On 15.06.25 10:17, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
And btw: It is basically common knowledge.
So the only way you could be sure the AI was trustworthy was because it
told you something you already knew?
OT and EOD in this subthread.
On 15.06.25 21:36, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 13:07:09 +0200, Jörg Lorenz wrote:
On 15.06.25 10:55, Lawrence D'Oliveiro wrote:
On Sun, 15 Jun 2025 10:35:53 +0200, Jörg Lorenz wrote:
And btw: It is basically common knowledge.
So the only way you could be sure the AI was trustworthy was because
it told you something you already knew?
OT and EOD in this subthread.
I hope you have learned a lesson about relying on AI.
You eypose yourself with absolutely no knowledge what
AI is and how it is used.
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
On 2025-06-15, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
You could ask AI for the sources and verify on them.
On 16.06.25 05:23, Roberto Deboni DMIsr wrote:
On 2025-06-15, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
On Sun, 15 Jun 2025 09:22:05 +0200, Jörg Lorenz wrote:
Mistral AI states relatively carefully:
I wonder how you can tell ...
You could ask AI for the sources and verify on them.
Quite easy. Mistral AI allows to do that quite transparently and it can
be adjusted.
Op 17/06/2025 om 20:21 schreef Arno Welzel:
sobriquet, 2025-06-17 13:27:
Op 15/06/2025 om 19:05 schreef Arno Welzel:
sobriquet, 2025-06-14 19:57:
What's the best free app to modify pdf files on android?
So not just viewing a pdf file, but actually making changes in it, like >>>>> filling out a form with additional information.
Filling out forms is not "modify" - it is just filling out a form in the >>>> PDF and storing the result.
Modify has the general meaning of "making changes" as one of its
connotations. So if you change anything about a pdf file, like filling
a pdf form, that can be understood as modification.
Yes, but you do *not* change the PDF itself. You just enter something in
form fields provided in the PDF. And you can then save the PDF with the
filled form. But when you open it again you will see, that the form
fields are still there and can be changed again - but nothing else,
since you will not change the PDF.
It's like filling a form on a website - you do not change the website
itself just by filling a form and sending it.
It depends how you interpret "change". If you fill out a form I would
say you change the form from an empty form to a form that has been
filled out. Also, it's natural to think of it as modifying the pdf
file, since the file attributes like "date last modified" will
typically change, while it wouldn't change if you just read the
pdf file without making any changes to the file.
Op 14/06/2025 om 21:17 schreef Marion:
On Sat, 14 Jun 2025 19:57:34 +0200, sobriquet wrote :
What's the best free app to modify pdf files on android?
So not just viewing a pdf file, but actually making changes in it, like
filling out a form with additional information.
Thanks in advance for any suggestions!
I don't know the answer, so I hope someone pitches in with the answer.
On the PC I've tried open office with a pdf extension, but that
doesn't seem to work very well, though it might vary depending on
the type of pdf.
With the pdf that I tried, I wasn't very satisfied with the free online version of ms-word either in the way it handled the pdf.
I'll give the free adobe pdf-editor webapp a try to see how that works.
I'm curious to know WHY you want to edit a PDF, which was designed as a non-editable end-of-line format.
On Sun, 22 Jun 2025, Peter Flynn wrote:
I'm curious to know WHY you want to edit a PDF, which was designed as a
non-editable end-of-line format.
Two possible reasons.
- I want to add annotations (e.g. I periodically dump my bank account
record of transactions, and wanto to add a sequence number to each
operation) ... procedure, open pdf with libreoffice, place my text
label, (re-)export as pdf, quit original file unsaved
- I receive from some administration a pdf document containing a form
(it is NOT a "pdf form", their fault) which in principle should be
filled, signed, printed, scanned and returned (sic!) instead .,,
... open pdf with libreoffice, insert wished text, insert scanned pmg
woith my signasture, export as pdf andf send resulting file
On Tue, 24 Jun 2025 22:58:31 +0200, Dom Adso von Melk OSB wrote:
On Sun, 22 Jun 2025, Peter Flynn wrote:
I'm curious to know WHY you want to edit a PDF, which was designed as a
non-editable end-of-line format.
Two possible reasons.
- I want to add annotations (e.g. I periodically dump my bank account
record of transactions, and wanto to add a sequence number to each
operation) ... procedure, open pdf with libreoffice, place my text
label, (re-)export as pdf, quit original file unsaved
I would save the result in a database (e.g. SQLite) or at least a CSV
file, for easier further processing. PDF is not suitable for that kind of record.
- I receive from some administration a pdf document containing a form
(it is NOT a "pdf form", their fault) which in principle should be
filled, signed, printed, scanned and returned (sic!) instead .,,
... open pdf with libreoffice, insert wished text, insert scanned pmg
woith my signasture, export as pdf andf send resulting file
I tend to do that with Inkscape. I can import the PDF file as background, lock that layer against further changes, and put my data entry in a
separate layer. That way I can get things nicely lined up with the blank field areas. Then re-export the completed result to a new PDF file, as you said.
On Sun, 22 Jun 2025, Peter Flynn wrote:
I'm curious to know WHY you want to edit a PDF, which was designed as
a non-editable end-of-line format.
Two possible reasons.
- I want to add annotations (e.g. I periodically dump my bank account
record of transactions, and wanto to add a sequence number to each
operation) ... procedure, open pdf with libreoffice, place my text
label, (re-)export as pdf, quit original file unsaved
- I receive from some administration a pdf document containing a form
(it is NOT a "pdf form", their fault) which in principle should be
filled, signed, printed, scanned and returned (sic!) instead .,,
... open pdf with libreoffice, insert wished text, insert scanned
pmg woith my signasture, export as pdf andf send resulting file
Because the "fields" (blank spaces) are the same location every
time, using LaTeX makes it possible to do the whole things from a
script.